Vulnerability-Lookup

RHSA-2026:63782

Vulnerability from csaf_redhat - Published: 2026-09-04 15:47 - Updated: 2026-09-06 22:24

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Severity

Important

Notes

Topic: An update for Red Hat Hardened Images RPMs is now available.

Details: This update includes the following RPMs: grafana12.4: * grafana12.4-12.4.9-0.6.hum1 (aarch64, x86_64) * grafana12.4-12.4.9-0.6.hum1.src (src) Security Fix(es): grafana12.4: * CVE-2026-84292 * CVE-2026-84394

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-84292

A flaw was found in fast-uri. This component improperly serializes the port component of a Uniform Resource Identifier (URI) without validating its content. A remote attacker can exploit this by crafting a malicious port value that injects authority delimiters. This manipulation can demote the intended host to user information and redirect the authority to an attacker-controlled host, leading to information disclosure as applications interpret the attacker's host as legitimate.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CWE-140 - Improper Neutralization of Delimiters

Affected products

Fixed 3 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@src	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@x86_64	—	Vendor Fix fix

Threats

Impact Important

CVE-2026-84394

A flaw was found in fast-uri. The library incorrectly processes Uniform Resource Identifier (URI) hosts containing unbalanced brackets, leading to a discrepancy in how the host is parsed by fast-uri compared to other HTTP clients. This host confusion can allow an attacker to bypass security policies, such as Server-Side Request Forgery (SSRF) denylists or redirect allowlists, by causing an application to evaluate its policy against an incorrect host string. This could result in unintended network requests or access to unauthorized resources.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CWE-1289 - Improper Validation of Unsafe Equivalence in Input

Affected products

Fixed 3 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@src	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@x86_64	—	Vendor Fix fix

Threats

Impact Important

CVE-2026-85024

A flaw was found in undici. A remote, unauthenticated attacker can trigger a Denial of Service (DoS) by sending a specially crafted compressed WebSocket payload. When this payload exceeds the 128 MiB decompressed-payload limit and contains a malformed DEFLATE byte, it causes an unhandled error in the internal zlib inflate stream. This unhandled error leads to the termination of the entire Node.js process, making the service unavailable.

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-431 - Missing Handler

Affected products

Fixed 3 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@src	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@x86_64	—	Vendor Fix fix

Threats

Impact Moderate

CVE-2026-85152

A flaw was found in undici. When the cache or deduplicate interceptor is directly composed onto a Client or Pool, the destination origin is omitted from cache and request-deduplication keys. This allows a remote attacker to perform cross-origin cache poisoning, leading to information disclosure and potentially a full authentication bypass. An attacker could exploit this by having a trusted origin accept a malicious token, without contacting the legitimate trusted origin.

7.4 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE-346 - Origin Validation Error

Affected products

Fixed 3 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@src	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@x86_64	—	Vendor Fix fix

Threats

Impact Important

References

29 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:63782	self
https://access.redhat.com/security/cve/CVE-2026-84292	external
https://access.redhat.com/security/cve/CVE-2026-84394	external
https://access.redhat.com/security/updates/classi…	external
https://images.redhat.com/	external
https://access.redhat.com/security/cve/CVE-2026-85024	external
https://access.redhat.com/security/cve/CVE-2026-85152	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-84292	self
https://bugzilla.redhat.com/show_bug.cgi?id=2527747	external
https://www.cve.org/CVERecord?id=CVE-2026-84292	external
https://nvd.nist.gov/vuln/detail/CVE-2026-84292	external
https://cna.openjsf.org/security-advisories.html	external
https://github.com/fastify/fast-uri/security/advi…	external
https://access.redhat.com/security/cve/CVE-2026-84394	self
https://bugzilla.redhat.com/show_bug.cgi?id=2527756	external
https://www.cve.org/CVERecord?id=CVE-2026-84394	external
https://nvd.nist.gov/vuln/detail/CVE-2026-84394	external
https://github.com/fastify/fast-uri/security/advi…	external
https://access.redhat.com/security/cve/CVE-2026-85024	self
https://bugzilla.redhat.com/show_bug.cgi?id=2528707	external
https://www.cve.org/CVERecord?id=CVE-2026-85024	external
https://nvd.nist.gov/vuln/detail/CVE-2026-85024	external
https://github.com/nodejs/undici/security/advisor…	external
https://access.redhat.com/security/cve/CVE-2026-85152	self
https://bugzilla.redhat.com/show_bug.cgi?id=2528717	external
https://www.cve.org/CVERecord?id=CVE-2026-85152	external
https://nvd.nist.gov/vuln/detail/CVE-2026-85152	external
https://github.com/nodejs/undici/security/advisor…	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for Red Hat Hardened Images RPMs is now available.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "This update includes the following RPMs:\n\ngrafana12.4:\n  * grafana12.4-12.4.9-0.6.hum1 (aarch64, x86_64)\n  * grafana12.4-12.4.9-0.6.hum1.src (src)\n\nSecurity Fix(es):\n\ngrafana12.4:\n  * CVE-2026-84292\n  * CVE-2026-84394",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2026:63782",
        "url": "https://access.redhat.com/errata/RHSA-2026:63782"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-84292",
        "url": "https://access.redhat.com/security/cve/CVE-2026-84292"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-84394",
        "url": "https://access.redhat.com/security/cve/CVE-2026-84394"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/",
        "url": "https://access.redhat.com/security/updates/classification/"
      },
      {
        "category": "external",
        "summary": "https://images.redhat.com/",
        "url": "https://images.redhat.com/"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-85024",
        "url": "https://access.redhat.com/security/cve/CVE-2026-85024"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-85152",
        "url": "https://access.redhat.com/security/cve/CVE-2026-85152"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_63782.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update",
    "tracking": {
      "current_release_date": "2026-09-06T22:24:33+00:00",
      "generator": {
        "date": "2026-09-06T22:24:33+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "5.3.16"
        }
      },
      "id": "RHSA-2026:63782",
      "initial_release_date": "2026-09-04T15:47:11+00:00",
      "revision_history": [
        {
          "date": "2026-09-04T15:47:11+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-09-04T19:16:03+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-09-06T22:24:33+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Hardened Images",
                "product": {
                  "name": "Red Hat Hardened Images",
                  "product_id": "Red Hat Hardened Images",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:hummingbird:1"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Hardened Images"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "grafana12-4-main@aarch64",
                "product": {
                  "name": "grafana12-4-main@aarch64",
                  "product_id": "grafana12-4-main@aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/grafana12.4@12.4.9-0.6.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "grafana12-4-main@src",
                "product": {
                  "name": "grafana12-4-main@src",
                  "product_id": "grafana12-4-main@src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/grafana12.4@12.4.9-0.6.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "grafana12-4-main@x86_64",
                "product": {
                  "name": "grafana12-4-main@x86_64",
                  "product_id": "grafana12-4-main@x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/grafana12.4@12.4.9-0.6.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "grafana12-4-main@aarch64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:grafana12-4-main@aarch64"
        },
        "product_reference": "grafana12-4-main@aarch64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "grafana12-4-main@src as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:grafana12-4-main@src"
        },
        "product_reference": "grafana12-4-main@src",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "grafana12-4-main@x86_64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:grafana12-4-main@x86_64"
        },
        "product_reference": "grafana12-4-main@x86_64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-84292",
      "cwe": {
        "id": "CWE-140",
        "name": "Improper Neutralization of Delimiters"
      },
      "discovery_date": "2026-09-02T20:21:15.599288+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2527747"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in fast-uri. This component improperly serializes the port component of a Uniform Resource Identifier (URI) without validating its content. A remote attacker can exploit this by crafting a malicious port value that injects authority delimiters. This manipulation can demote the intended host to user information and redirect the authority to an attacker-controlled host, leading to information disclosure as applications interpret the attacker\u0027s host as legitimate.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "fast-uri: fast-uri: Authority Injection via Unvalidated Port Serialization",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:grafana12-4-main@aarch64",
          "Red Hat Hardened Images:grafana12-4-main@src",
          "Red Hat Hardened Images:grafana12-4-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-84292"
        },
        {
          "category": "external",
          "summary": "RHBZ#2527747",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2527747"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-84292",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-84292"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-84292",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84292"
        },
        {
          "category": "external",
          "summary": "https://cna.openjsf.org/security-advisories.html",
          "url": "https://cna.openjsf.org/security-advisories.html"
        },
        {
          "category": "external",
          "summary": "https://github.com/fastify/fast-uri/security/advisories/GHSA-qw65-cvwx-89v3",
          "url": "https://github.com/fastify/fast-uri/security/advisories/GHSA-qw65-cvwx-89v3"
        }
      ],
      "release_date": "2026-09-02T20:09:51.415000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-04T15:47:11+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:grafana12-4-main@aarch64",
            "Red Hat Hardened Images:grafana12-4-main@src",
            "Red Hat Hardened Images:grafana12-4-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:63782"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:grafana12-4-main@aarch64",
            "Red Hat Hardened Images:grafana12-4-main@src",
            "Red Hat Hardened Images:grafana12-4-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "fast-uri: fast-uri: Authority Injection via Unvalidated Port Serialization"
    },
    {
      "cve": "CVE-2026-84394",
      "cwe": {
        "id": "CWE-1289",
        "name": "Improper Validation of Unsafe Equivalence in Input"
      },
      "discovery_date": "2026-09-02T20:31:21.036047+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2527756"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in fast-uri. The library incorrectly processes Uniform Resource Identifier (URI) hosts containing unbalanced brackets, leading to a discrepancy in how the host is parsed by fast-uri compared to other HTTP clients. This host confusion can allow an attacker to bypass security policies, such as Server-Side Request Forgery (SSRF) denylists or redirect allowlists, by causing an application to evaluate its policy against an incorrect host string. This could result in unintended network requests or access to unauthorized resources.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "fast-uri: fast-uri: Host confusion via unbalanced URI brackets can bypass security policies",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue is rated Moderate because successful exploitation requires a specific configuration where fast-uri handles security checks but a different client resolves the URL, enabling security policy bypasses without direct code execution. This affects fast-uri versions 2.4.5, 3.1.6, and 4.1.3 (fixed in 2.4.6, 3.1.7, and 4.1.4).",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:grafana12-4-main@aarch64",
          "Red Hat Hardened Images:grafana12-4-main@src",
          "Red Hat Hardened Images:grafana12-4-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-84394"
        },
        {
          "category": "external",
          "summary": "RHBZ#2527756",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2527756"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-84394",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-84394"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-84394",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84394"
        },
        {
          "category": "external",
          "summary": "https://cna.openjsf.org/security-advisories.html",
          "url": "https://cna.openjsf.org/security-advisories.html"
        },
        {
          "category": "external",
          "summary": "https://github.com/fastify/fast-uri/security/advisories/GHSA-58mr-gqgx-xq4g",
          "url": "https://github.com/fastify/fast-uri/security/advisories/GHSA-58mr-gqgx-xq4g"
        }
      ],
      "release_date": "2026-09-02T20:25:35.399000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-04T15:47:11+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:grafana12-4-main@aarch64",
            "Red Hat Hardened Images:grafana12-4-main@src",
            "Red Hat Hardened Images:grafana12-4-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:63782"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:grafana12-4-main@aarch64",
            "Red Hat Hardened Images:grafana12-4-main@src",
            "Red Hat Hardened Images:grafana12-4-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "fast-uri: fast-uri: Host confusion via unbalanced URI brackets can bypass security policies"
    },
    {
      "cve": "CVE-2026-85024",
      "cwe": {
        "id": "CWE-431",
        "name": "Missing Handler"
      },
      "discovery_date": "2026-09-04T16:32:04.089014+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2528707"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in undici. A remote, unauthenticated attacker can trigger a Denial of Service (DoS) by sending a specially crafted compressed WebSocket payload. When this payload exceeds the 128 MiB decompressed-payload limit and contains a malformed DEFLATE byte, it causes an unhandled error in the internal zlib inflate stream. This unhandled error leads to the termination of the entire Node.js process, making the service unavailable.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "undici: undici: Denial of Service via unhandled error in WebSocket permessage-deflate decompression",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:grafana12-4-main@aarch64",
          "Red Hat Hardened Images:grafana12-4-main@src",
          "Red Hat Hardened Images:grafana12-4-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-85024"
        },
        {
          "category": "external",
          "summary": "RHBZ#2528707",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2528707"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-85024",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-85024"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-85024",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85024"
        },
        {
          "category": "external",
          "summary": "https://cna.openjsf.org/security-advisories.html",
          "url": "https://cna.openjsf.org/security-advisories.html"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodejs/undici/security/advisories/GHSA-3wwx-pv8p-q78v",
          "url": "https://github.com/nodejs/undici/security/advisories/GHSA-3wwx-pv8p-q78v"
        }
      ],
      "release_date": "2026-09-04T16:20:34.709000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-04T15:47:11+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:grafana12-4-main@aarch64",
            "Red Hat Hardened Images:grafana12-4-main@src",
            "Red Hat Hardened Images:grafana12-4-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:63782"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:grafana12-4-main@aarch64",
            "Red Hat Hardened Images:grafana12-4-main@src",
            "Red Hat Hardened Images:grafana12-4-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "undici: undici: Denial of Service via unhandled error in WebSocket permessage-deflate decompression"
    },
    {
      "cve": "CVE-2026-85152",
      "cwe": {
        "id": "CWE-346",
        "name": "Origin Validation Error"
      },
      "discovery_date": "2026-09-04T16:41:35.623977+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2528717"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in undici. When the cache or deduplicate interceptor is directly composed onto a Client or Pool, the destination origin is omitted from cache and request-deduplication keys. This allows a remote attacker to perform cross-origin cache poisoning, leading to information disclosure and potentially a full authentication bypass. An attacker could exploit this by having a trusted origin accept a malicious token, without contacting the legitimate trusted origin.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "undici: undici: Authentication bypass via cross-origin cache poisoning due to missing origin isolation",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:grafana12-4-main@aarch64",
          "Red Hat Hardened Images:grafana12-4-main@src",
          "Red Hat Hardened Images:grafana12-4-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-85152"
        },
        {
          "category": "external",
          "summary": "RHBZ#2528717",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2528717"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-85152",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-85152"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-85152",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85152"
        },
        {
          "category": "external",
          "summary": "https://cna.openjsf.org/security-advisories.html",
          "url": "https://cna.openjsf.org/security-advisories.html"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodejs/undici/security/advisories/GHSA-vp8m-p9jh-q5pm",
          "url": "https://github.com/nodejs/undici/security/advisories/GHSA-vp8m-p9jh-q5pm"
        }
      ],
      "release_date": "2026-09-04T16:36:28.085000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-04T15:47:11+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:grafana12-4-main@aarch64",
            "Red Hat Hardened Images:grafana12-4-main@src",
            "Red Hat Hardened Images:grafana12-4-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:63782"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:grafana12-4-main@aarch64",
            "Red Hat Hardened Images:grafana12-4-main@src",
            "Red Hat Hardened Images:grafana12-4-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "undici: undici: Authentication bypass via cross-origin cache poisoning due to missing origin isolation"
    }
  ]
}

CVE-2026-84292 (GCVE-0-2026-84292)

Vulnerability from cvelistv5 – Published: 2026-09-02 20:09 – Updated: 2026-09-03 13:16

Title

fast-uri vulnerable to authority injection via an unvalidated port in serialize

Summary

fast-uri serializes the port component of a URI without validating it. When recomposing the authority, the userinfo and host components are escaped but the port is concatenated verbatim, so a port value that is not a sequence of digits can inject authority delimiters, demoting the intended host to userinfo and pointing the authority at an attacker-controlled host. Both fast-uri and Node's URL read the result back as the attacker's host with no error, so re-validating the built URI does not catch it. This affects applications that build URIs from parts and assign untrusted data to the port component through the serialize, normalize, or equal functions in their object forms. The issue affects fast-uri versions before 2.4.6, from 3.0.0 before 3.1.7, and from 4.0.0 before 4.1.4. It is fixed in 2.4.6, 3.1.7, and 4.1.4, where recomposeAuthority rejects any port that is not a digit sequence per RFC 3986.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-03 13:16 UTC

CWE

CWE-116 - Improper Encoding or Escaping of Output

Assigner

openjs redhat root

References

2 references

URL	Tags
https://github.com/fastify/fast-uri/security/advi…
https://cna.openjsf.org/security-advisories.html

Impacted products

1 product

Vendor	Product	Version
fast-uri	fast-uri	Affected: 0 , < 2.4.6 (semver) Unaffected: 2.4.6 (semver) Affected: 3.0.0 , < 3.1.7 (semver) Unaffected: 3.1.7 (semver) Affected: 4.0.0 , < 4.1.4 (semver) Unaffected: 4.1.4 (semver)

Credits

YashvantHange mcollina UlisesGascon

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-84292",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-03T13:16:05.344208Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-03T13:16:25.237Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/fast-uri",
          "product": "fast-uri",
          "vendor": "fast-uri",
          "versions": [
            {
              "lessThan": "2.4.6",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2.4.6",
              "versionType": "semver"
            },
            {
              "lessThan": "3.1.7",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "3.1.7",
              "versionType": "semver"
            },
            {
              "lessThan": "4.1.4",
              "status": "affected",
              "version": "4.0.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "4.1.4",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "YashvantHange"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "mcollina"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "UlisesGascon"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "fast-uri serializes the port component of a URI without validating it. When recomposing the authority, the userinfo and host components are escaped but the port is concatenated verbatim, so a port value that is not a sequence of digits can inject authority delimiters, demoting the intended host to userinfo and pointing the authority at an attacker-controlled host. Both fast-uri and Node\u0027s URL read the result back as the attacker\u0027s host with no error, so re-validating the built URI does not catch it. This affects applications that build URIs from parts and assign untrusted data to the port component through the serialize, normalize, or equal functions in their object forms. The issue affects fast-uri versions before 2.4.6, from 3.0.0 before 3.1.7, and from 4.0.0 before 4.1.4. It is fixed in 2.4.6, 3.1.7, and 4.1.4, where recomposeAuthority rejects any port that is not a digit sequence per RFC 3986."
            }
          ],
          "value": "fast-uri serializes the port component of a URI without validating it. When recomposing the authority, the userinfo and host components are escaped but the port is concatenated verbatim, so a port value that is not a sequence of digits can inject authority delimiters, demoting the intended host to userinfo and pointing the authority at an attacker-controlled host. Both fast-uri and Node\u0027s URL read the result back as the attacker\u0027s host with no error, so re-validating the built URI does not catch it. This affects applications that build URIs from parts and assign untrusted data to the port component through the serialize, normalize, or equal functions in their object forms. The issue affects fast-uri versions before 2.4.6, from 3.0.0 before 3.1.7, and from 4.0.0 before 4.1.4. It is fixed in 2.4.6, 3.1.7, and 4.1.4, where recomposeAuthority rejects any port that is not a digit sequence per RFC 3986."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-116",
              "description": "CWE-116: Improper Encoding or Escaping of Output",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-02T20:09:51.415Z",
        "orgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
        "shortName": "openjs"
      },
      "references": [
        {
          "url": "https://github.com/fastify/fast-uri/security/advisories/GHSA-qw65-cvwx-89v3"
        },
        {
          "url": "https://cna.openjsf.org/security-advisories.html"
        }
      ],
      "title": "fast-uri vulnerable to authority injection via an unvalidated port in serialize",
      "x_generator": {
        "engine": "cve-kit 1.0.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
    "assignerShortName": "openjs",
    "cveId": "CVE-2026-84292",
    "datePublished": "2026-09-02T20:09:51.415Z",
    "dateReserved": "2026-09-01T16:10:49.688Z",
    "dateUpdated": "2026-09-03T13:16:25.237Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-84394 (GCVE-0-2026-84394)

Vulnerability from cvelistv5 – Published: 2026-09-02 20:25 – Updated: 2026-09-03 13:14

Title

fast-uri vulnerable to host confusion via an unclosed bracket in the URI authority

Summary

fast-uri accepts a host that contains an unbalanced or misplaced authority bracket without reporting an error. A host that starts with an opening bracket but does not end with a closing bracket is neither validated as an IP literal nor canonicalized as a domain name, so parse() returns it as the host with error undefined, while Node's URL and the HTTP clients built on it resolve the same string to a different host. An application that reads the parsed host to make a host decision, such as an SSRF denylist, a redirect allowlist, or proxy routing, and then passes the original URL to an HTTP client evaluates its policy against a string that is not the host the request reaches. The same host is carried through normalize, equal, and resolve. This affects fast-uri versions 2.4.5, 3.1.6, and 4.1.3, and is fixed in 2.4.6, 3.1.7, and 4.1.4, where parse() reports a malformed host for any host that contains a bracket but is not a valid IPv6 literal.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-03 13:14 UTC

CWE

CWE-436 - Interpretation Conflict

Assigner

openjs redhat root

References

2 references

URL	Tags
https://github.com/fastify/fast-uri/security/advi…
https://cna.openjsf.org/security-advisories.html

Impacted products

1 product

Vendor	Product	Version
fast-uri	fast-uri	Affected: 2.4.5 , < 2.4.6 (semver) Unaffected: 2.4.6 (semver) Affected: 3.1.6 , < 3.1.7 (semver) Unaffected: 3.1.7 (semver) Affected: 4.1.3 , < 4.1.4 (semver) Unaffected: 4.1.4 (semver)

Credits

YashvantHange mcollina UlisesGascon

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-84394",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-03T13:14:34.742806Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-03T13:14:42.123Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/fast-uri",
          "product": "fast-uri",
          "vendor": "fast-uri",
          "versions": [
            {
              "lessThan": "2.4.6",
              "status": "affected",
              "version": "2.4.5",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2.4.6",
              "versionType": "semver"
            },
            {
              "lessThan": "3.1.7",
              "status": "affected",
              "version": "3.1.6",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "3.1.7",
              "versionType": "semver"
            },
            {
              "lessThan": "4.1.4",
              "status": "affected",
              "version": "4.1.3",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "4.1.4",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "YashvantHange"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "mcollina"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "UlisesGascon"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "fast-uri accepts a host that contains an unbalanced or misplaced authority bracket without reporting an error. A host that starts with an opening bracket but does not end with a closing bracket is neither validated as an IP literal nor canonicalized as a domain name, so parse() returns it as the host with error undefined, while Node\u0027s URL and the HTTP clients built on it resolve the same string to a different host. An application that reads the parsed host to make a host decision, such as an SSRF denylist, a redirect allowlist, or proxy routing, and then passes the original URL to an HTTP client evaluates its policy against a string that is not the host the request reaches. The same host is carried through normalize, equal, and resolve. This affects fast-uri versions 2.4.5, 3.1.6, and 4.1.3, and is fixed in 2.4.6, 3.1.7, and 4.1.4, where parse() reports a malformed host for any host that contains a bracket but is not a valid IPv6 literal."
            }
          ],
          "value": "fast-uri accepts a host that contains an unbalanced or misplaced authority bracket without reporting an error. A host that starts with an opening bracket but does not end with a closing bracket is neither validated as an IP literal nor canonicalized as a domain name, so parse() returns it as the host with error undefined, while Node\u0027s URL and the HTTP clients built on it resolve the same string to a different host. An application that reads the parsed host to make a host decision, such as an SSRF denylist, a redirect allowlist, or proxy routing, and then passes the original URL to an HTTP client evaluates its policy against a string that is not the host the request reaches. The same host is carried through normalize, equal, and resolve. This affects fast-uri versions 2.4.5, 3.1.6, and 4.1.3, and is fixed in 2.4.6, 3.1.7, and 4.1.4, where parse() reports a malformed host for any host that contains a bracket but is not a valid IPv6 literal."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-436",
              "description": "CWE-436: Interpretation Conflict",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-02T20:25:35.399Z",
        "orgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
        "shortName": "openjs"
      },
      "references": [
        {
          "url": "https://github.com/fastify/fast-uri/security/advisories/GHSA-58mr-gqgx-xq4g"
        },
        {
          "url": "https://cna.openjsf.org/security-advisories.html"
        }
      ],
      "title": "fast-uri vulnerable to host confusion via an unclosed bracket in the URI authority",
      "x_generator": {
        "engine": "cve-kit 1.0.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
    "assignerShortName": "openjs",
    "cveId": "CVE-2026-84394",
    "datePublished": "2026-09-02T20:25:35.399Z",
    "dateReserved": "2026-09-01T16:42:27.072Z",
    "dateUpdated": "2026-09-03T13:14:42.123Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-85024 (GCVE-0-2026-85024)

Vulnerability from cvelistv5 – Published: 2026-09-04 16:20 – Updated: 2026-09-04 19:30

Title

undici vulnerable to Denial of Service via unhandled error in WebSocket permessage-deflate decompression

Summary

undici bundles a WebSocket client whose permessage-deflate size-limit cleanup removes all listeners from the internal zlib inflate stream, including its error listener, while that stream can still emit. When a remote peer sends a compressed payload that crosses the built-in 128 MiB decompressed-payload limit and then contains a malformed DEFLATE byte, the inflate stream emits a data error with no listener attached, which Node.js treats as a fatal unhandled error and terminates the entire process. Exploitation is remote and unauthenticated, requires no application mistake, and is asymmetric, since roughly 130 KB on the wire expands past the limit and crashes the process, and reconnecting can repeat the crash. This affects undici versions from 6.25.0 up to 6.28.1, from 7.28.0 up to 7.29.1, and from 8.1.0 up to 8.10.2. Users should upgrade to undici 6.28.1, 7.29.1, or 8.10.2.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-04 19:30 UTC

CWE

CWE-248 - Uncaught Exception

Assigner

openjs redhat root

References

2 references

URL	Tags
https://github.com/nodejs/undici/security/advisor…
https://cna.openjsf.org/security-advisories.html

Impacted products

1 product

Vendor	Product	Version
undici	undici	Affected: 6.25.0 , < 6.28.1 (semver) Unaffected: 6.28.1 (semver) Affected: 7.28.0 , < 7.29.1 (semver) Unaffected: 7.29.1 (semver) Affected: 8.1.0 , < 8.10.2 (semver) Unaffected: 8.10.2 (semver)

Credits

mcollina krsecu UlisesGascon

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-85024",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-04T19:30:33.342541Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-04T19:30:54.293Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/undici",
          "product": "undici",
          "vendor": "undici",
          "versions": [
            {
              "lessThan": "6.28.1",
              "status": "affected",
              "version": "6.25.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.28.1",
              "versionType": "semver"
            },
            {
              "lessThan": "7.29.1",
              "status": "affected",
              "version": "7.28.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.29.1",
              "versionType": "semver"
            },
            {
              "lessThan": "8.10.2",
              "status": "affected",
              "version": "8.1.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "8.10.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "mcollina"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "krsecu"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "UlisesGascon"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "undici bundles a WebSocket client whose permessage-deflate size-limit cleanup removes all listeners from the internal zlib inflate stream, including its error listener, while that stream can still emit. When a remote peer sends a compressed payload that crosses the built-in 128 MiB decompressed-payload limit and then contains a malformed DEFLATE byte, the inflate stream emits a data error with no listener attached, which Node.js treats as a fatal unhandled error and terminates the entire process. Exploitation is remote and unauthenticated, requires no application mistake, and is asymmetric, since roughly 130 KB on the wire expands past the limit and crashes the process, and reconnecting can repeat the crash. This affects undici versions from 6.25.0 up to 6.28.1, from 7.28.0 up to 7.29.1, and from 8.1.0 up to 8.10.2. Users should upgrade to undici 6.28.1, 7.29.1, or 8.10.2."
            }
          ],
          "value": "undici bundles a WebSocket client whose permessage-deflate size-limit cleanup removes all listeners from the internal zlib inflate stream, including its error listener, while that stream can still emit. When a remote peer sends a compressed payload that crosses the built-in 128 MiB decompressed-payload limit and then contains a malformed DEFLATE byte, the inflate stream emits a data error with no listener attached, which Node.js treats as a fatal unhandled error and terminates the entire process. Exploitation is remote and unauthenticated, requires no application mistake, and is asymmetric, since roughly 130 KB on the wire expands past the limit and crashes the process, and reconnecting can repeat the crash. This affects undici versions from 6.25.0 up to 6.28.1, from 7.28.0 up to 7.29.1, and from 8.1.0 up to 8.10.2. Users should upgrade to undici 6.28.1, 7.29.1, or 8.10.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-248",
              "description": "CWE-248: Uncaught Exception",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T16:20:34.709Z",
        "orgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
        "shortName": "openjs"
      },
      "references": [
        {
          "url": "https://github.com/nodejs/undici/security/advisories/GHSA-3wwx-pv8p-q78v"
        },
        {
          "url": "https://cna.openjsf.org/security-advisories.html"
        }
      ],
      "title": "undici vulnerable to Denial of Service via unhandled error in WebSocket permessage-deflate decompression",
      "x_generator": {
        "engine": "cve-kit 1.0.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
    "assignerShortName": "openjs",
    "cveId": "CVE-2026-85024",
    "datePublished": "2026-09-04T16:20:34.709Z",
    "dateReserved": "2026-09-02T19:57:23.011Z",
    "dateUpdated": "2026-09-04T19:30:54.293Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-85152 (GCVE-0-2026-85152)

Vulnerability from cvelistv5 – Published: 2026-09-04 16:36 – Updated: 2026-09-04 19:29

Title

undici vulnerable to cross-origin cache poisoning via missing origin isolation in interceptors

Summary

undici 8.10.0 omits the destination origin from the cache and request-deduplication keys when the cache or deduplicate interceptor is composed directly onto a Client or Pool. Because the internal cache key falls back to an empty origin string, a cacheable or in-flight response from one upstream origin is returned for a request to a different, trusted origin whenever the method, path, and relevant headers match, which permits cross-origin information disclosure and persistent cache poisoning. The reporter demonstrated a full authentication bypass in which a JWT signed with an attacker-controlled key was accepted as belonging to a trusted issuer, and the trusted origin was never contacted. This is a regression introduced in 8.10.0 and affects undici versions from 8.10.0 up to 8.10.2. Applications using an Agent, which carries the origin in its dispatch options, are not affected. Users should upgrade to undici 8.10.2.

Severity

7.4 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-04 19:29 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

openjs redhat root

References

2 references

URL	Tags
https://github.com/nodejs/undici/security/advisor…
https://cna.openjsf.org/security-advisories.html

Impacted products

1 product

Vendor	Product	Version
undici	undici	Affected: 8.10.0 , < 8.10.2 (semver) Unaffected: 8.10.2 (semver)

Credits

nikolakojic-rasit mcollina UlisesGascon

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-85152",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-04T19:29:18.959401Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-04T19:29:29.802Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/undici",
          "product": "undici",
          "vendor": "undici",
          "versions": [
            {
              "lessThan": "8.10.2",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "8.10.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "nikolakojic-rasit"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "mcollina"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "UlisesGascon"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "undici 8.10.0 omits the destination origin from the cache and request-deduplication keys when the cache or deduplicate interceptor is composed directly onto a Client or Pool. Because the internal cache key falls back to an empty origin string, a cacheable or in-flight response from one upstream origin is returned for a request to a different, trusted origin whenever the method, path, and relevant headers match, which permits cross-origin information disclosure and persistent cache poisoning. The reporter demonstrated a full authentication bypass in which a JWT signed with an attacker-controlled key was accepted as belonging to a trusted issuer, and the trusted origin was never contacted. This is a regression introduced in 8.10.0 and affects undici versions from 8.10.0 up to 8.10.2. Applications using an Agent, which carries the origin in its dispatch options, are not affected. Users should upgrade to undici 8.10.2."
            }
          ],
          "value": "undici 8.10.0 omits the destination origin from the cache and request-deduplication keys when the cache or deduplicate interceptor is composed directly onto a Client or Pool. Because the internal cache key falls back to an empty origin string, a cacheable or in-flight response from one upstream origin is returned for a request to a different, trusted origin whenever the method, path, and relevant headers match, which permits cross-origin information disclosure and persistent cache poisoning. The reporter demonstrated a full authentication bypass in which a JWT signed with an attacker-controlled key was accepted as belonging to a trusted issuer, and the trusted origin was never contacted. This is a regression introduced in 8.10.0 and affects undici versions from 8.10.0 up to 8.10.2. Applications using an Agent, which carries the origin in its dispatch options, are not affected. Users should upgrade to undici 8.10.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-346",
              "description": "CWE-346: Origin Validation Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T16:36:28.085Z",
        "orgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
        "shortName": "openjs"
      },
      "references": [
        {
          "url": "https://github.com/nodejs/undici/security/advisories/GHSA-vp8m-p9jh-q5pm"
        },
        {
          "url": "https://cna.openjsf.org/security-advisories.html"
        }
      ],
      "title": "undici vulnerable to cross-origin cache poisoning via missing origin isolation in interceptors",
      "x_generator": {
        "engine": "cve-kit 1.0.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
    "assignerShortName": "openjs",
    "cveId": "CVE-2026-85152",
    "datePublished": "2026-09-04T16:36:28.085Z",
    "dateReserved": "2026-09-03T10:34:23.057Z",
    "dateUpdated": "2026-09-04T19:29:29.802Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

RHSA-2026:63782

CVE-2026-84292 (GCVE-0-2026-84292)

CVE-2026-84394 (GCVE-0-2026-84394)

CVE-2026-85024 (GCVE-0-2026-85024)

CVE-2026-85152 (GCVE-0-2026-85152)

Tags

Sightings

Nomenclature