Vulnerability-Lookup

CVE-2026-109869 (GCVE-0-2026-109869)

Vulnerability from cvelistv5 – Published: 2026-10-15 18:08 – Updated: 2026-10-16 20:06

Title

undici vulnerable to Denial of Service via unhandled error on excessive content-encodings

Summary

undici is an HTTP client library for Node.js. In versions 6.23.0 through 6.29.0, 7.18.0 through 7.30.0, and 8.0.0 through 8.12.1, its fetch() implementation crashes the Node.js process when a malicious server returns a response with more than five content codings and closes the connection before sending the body. undici rejects such responses because of a content-encoding limit, but it created the internal response stream before that check and returned without attaching an error listener or aborting the request, so the early close surfaces a content-length mismatch on the orphaned stream, which Node.js treats as an unhandled error and terminates the process. A remote, unauthenticated server can trigger this with a single response, even when the application correctly catches the fetch() rejection, resulting in a denial of service. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, and users should upgrade to one of those versions or later. There is no workaround.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 20:05 UTC

CWE

CWE-248 - Uncaught Exception
CWE-459 - Incomplete Cleanup

Assigner

openjs CNA under the redhat root

CNA scorecard C 65/100 over 125 records in the last 180 days details

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	CPE status
undici	undici	Affected: 6.23.0 , < 6.29.1 (semver) Unaffected: 6.29.1 (semver) Affected: 7.18.0 , < 7.30.1 (semver) Unaffected: 7.30.1 (semver) Affected: 8.0.0 , < 8.12.2 (semver) Unaffected: 8.12.2 (semver)	guessed

Credits

hanityx mcollina UlisesGascon

Show details on NVD website

JSON

To clipboard

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CLEANSTART-2026-LB99880 (CVE-2026-109869)

Vulnerability from cleanstart – Published: 2026-10-24 00:36 – Updated: 2026-10-23 10:56 – Source website

Summary

undici is an HTTP client library for Node

Details

Security vulnerability affects the npm package. undici is an HTTP client library for Node.

Severity

7.5 (High)


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

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/CVE-2026-109869	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-109869	WEB

JSON

To clipboard

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    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "npm",
        "purl": "pkg:apk/cleanstart/npm?arch=noarch"
      },
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        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12.0.2-r5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [],
  "database_specific": {},
  "details": "Security vulnerability affects the npm package. undici is an HTTP client library for Node.",
  "id": "CLEANSTART-2026-LB99880",
  "modified": "2026-10-23T10:56:00Z",
  "published": "2026-10-24T00:36:36.078600Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-LB99880.json"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-109869"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109869"
    }
  ],
  "related": [],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "undici is an HTTP client library for Node",
  "upstream": [
    "CVE-2026-109869"
  ]
}

CLEANSTART-2026-MJ91432 (CVE-2026-109869)

Vulnerability from cleanstart – Published: 2026-10-31 00:40 – Updated: 2026-10-30 08:33 – Source website

Summary

undici is an HTTP client library for Node

Details

CVE-2026-109869 affects multiple packages. undici is an HTTP client library for Node. See references for individual vulnerability details.

Severity

7.5 (High)


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

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/CVE-2026-109869	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-109869	WEB

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "npm",
        "purl": "pkg:apk/cleanstart/npm?arch=noarch"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12.2.0-r3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "qdrant",
        "purl": "pkg:apk/cleanstart/qdrant?arch=x86_64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.19.2-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "qdrant",
        "purl": "pkg:apk/cleanstart/qdrant?arch=aarch64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.19.2-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "langfuse-worker",
        "purl": "pkg:apk/cleanstart/langfuse-worker"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.225.9-r8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "npm",
        "purl": "pkg:apk/cleanstart/npm?arch=noarch"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "11.19.1-r2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "langfuse",
        "purl": "pkg:apk/cleanstart/langfuse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.225.9-r9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [],
  "database_specific": {},
  "details": "CVE-2026-109869 affects multiple packages. undici is an HTTP client library for Node. See references for individual vulnerability details.",
  "id": "CLEANSTART-2026-MJ91432",
  "modified": "2026-10-30T08:33:10Z",
  "published": "2026-10-31T00:40:46.364881Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-MJ91432.json"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-109869"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109869"
    }
  ],
  "related": [],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "undici is an HTTP client library for Node",
  "upstream": [
    "CVE-2026-109869"
  ]
}

FKIE_CVE-2026-109869

Vulnerability from fkie_nvd - Published: 2026-10-15 19:17 - Updated: 2026-10-19 20:45

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	ce714d77-add3-4f53-aff5-83d477b104bb	https://cna.openjsf.org/security-advisories.html	Vendor Advisory
	ce714d77-add3-4f53-aff5-83d477b104bb	https://github.com/nodejs/undici/security/advisories/GHSA-xjj6-f33q-929c	Vendor Advisory

Impacted products

Vendor	Product	Version
nodejs	undici	*
nodejs	undici	*
nodejs	undici	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/undici",
          "product": "undici",
          "vendor": "undici",
          "versions": [
            {
              "lessThan": "6.29.1",
              "status": "affected",
              "version": "6.23.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.29.1",
              "versionType": "semver"
            },
            {
              "lessThan": "7.30.1",
              "status": "affected",
              "version": "7.18.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.30.1",
              "versionType": "semver"
            },
            {
              "lessThan": "8.12.2",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "8.12.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "ce714d77-add3-4f53-aff5-83d477b104bb"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "5A75F27F-9451-423A-BAA3-B1AE1EB79D55",
              "versionEndExcluding": "6.29.1",
              "versionStartIncluding": "6.23.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "64B58167-260D-400F-ACA5-E0DA0B6FA2E0",
              "versionEndExcluding": "7.30.1",
              "versionStartIncluding": "7.18.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "58E7E81B-786E-47BB-BD33-DAADED999225",
              "versionEndExcluding": "8.12.2",
              "versionStartIncluding": "8.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "undici is an HTTP client library for Node.js. In versions 6.23.0 through 6.29.0, 7.18.0 through 7.30.0, and 8.0.0 through 8.12.1, its fetch() implementation crashes the Node.js process when a malicious server returns a response with more than five content codings and closes the connection before sending the body. undici rejects such responses because of a content-encoding limit, but it created the internal response stream before that check and returned without attaching an error listener or aborting the request, so the early close surfaces a content-length mismatch on the orphaned stream, which Node.js treats as an unhandled error and terminates the process. A remote, unauthenticated server can trigger this with a single response, even when the application correctly catches the fetch() rejection, resulting in a denial of service. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, and users should upgrade to one of those versions or later. There is no workaround."
    }
  ],
  "id": "CVE-2026-109869",
  "lastModified": "2026-10-19T20:45:20.340",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "ce714d77-add3-4f53-aff5-83d477b104bb",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-109869",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-16T20:05:44.033842Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-15T19:17:21.770",
  "references": [
    {
      "source": "ce714d77-add3-4f53-aff5-83d477b104bb",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://cna.openjsf.org/security-advisories.html"
    },
    {
      "source": "ce714d77-add3-4f53-aff5-83d477b104bb",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/nodejs/undici/security/advisories/GHSA-xjj6-f33q-929c"
    }
  ],
  "sourceIdentifier": "ce714d77-add3-4f53-aff5-83d477b104bb",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-248"
        },
        {
          "lang": "en",
          "value": "CWE-459"
        }
      ],
      "source": "ce714d77-add3-4f53-aff5-83d477b104bb",
      "type": "Secondary"
    }
  ]
}

GHSA-XJJ6-F33Q-929C

Vulnerability from github – Published: 2026-10-23 22:14 – Updated: 2026-10-23 22:14

Summary

undici vulnerable to Denial of Service via unhandled error on excessive content-encodings

Details

Impact

undici's fetch() crashes the Node.js process when a malicious server returns a response with more than five content codings and closes the connection before sending the body. undici rejects such responses (a content-encoding limit), but it created the internal response stream before that check and returned without attaching an error listener or aborting the request. The early close then surfaces a content-length mismatch on that orphaned internal stream, which Node.js treats as an unhandled error and terminates the process. A remote, unauthenticated server can trigger this with a single response, even when the application correctly catches the fetch() rejection. undici 6.x, 7.x, and 8.x are affected.

Patches

Upgrade to 6.29.1, 7.30.1, or 8.12.2. undici now validates the content-encoding chain before creating the internal body stream and aborts the response when the limit is exceeded, so no error can surface on an orphaned stream.

Workarounds

None.

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "undici"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.23.0"
            },
            {
              "fixed": "6.29.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "undici"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.18.0"
            },
            {
              "fixed": "7.30.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "undici"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.12.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-109869"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-248",
      "CWE-459"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-23T22:14:31Z",
    "nvd_published_at": "2026-10-15T19:17:21Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nundici\u0027s `fetch()` crashes the Node.js process when a malicious server returns a response with more than five content codings and closes the connection before sending the body. undici rejects such responses (a content-encoding limit), but it created the internal response stream before that check and returned without attaching an error listener or aborting the request. The early close then surfaces a content-length mismatch on that orphaned internal stream, which Node.js treats as an unhandled `error` and terminates the process. A remote, unauthenticated server can trigger this with a single response, even when the application correctly catches the `fetch()` rejection. undici 6.x, 7.x, and 8.x are affected.\n\n### Patches\n\nUpgrade to `6.29.1`, `7.30.1`, or `8.12.2`. undici now validates the content-encoding chain before creating the internal body stream and aborts the response when the limit is exceeded, so no error can surface on an orphaned stream.\n\n### Workarounds\n\nNone.",
  "id": "GHSA-xjj6-f33q-929c",
  "modified": "2026-10-23T22:14:31Z",
  "published": "2026-10-23T22:14:31Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nodejs/undici/security/advisories/GHSA-xjj6-f33q-929c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109869"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nodejs/undici/commit/07ded4941b1e72afec862958c3b8ddf468f3b429"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nodejs/undici/commit/1325a87dfb3492f8e87e6b0a84b3bda4e82e3436"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nodejs/undici/commit/b5084c7dc239172d75c336b1cd51ddac023938a5"
    },
    {
      "type": "WEB",
      "url": "https://cna.openjsf.org/security-advisories.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/nodejs/undici"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nodejs/undici/releases/tag/v6.29.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nodejs/undici/releases/tag/v7.30.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nodejs/undici/releases/tag/v8.12.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "undici vulnerable to Denial of Service via unhandled error on excessive content-encodings"
}

RHSA-2026:84657

Vulnerability from csaf_redhat - Published: 2026-10-19 04:50 - Updated: 2026-11-04 15:48

Summary

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

Severity

Important

Scope

9 vulnerabilities in this advisory, including CVE-2026-109869.

CVE-2026-109869

A flaw was found in undici. When an application sends a request to a malicious remote server, the server can return a response with excessive content encodings and immediately close the connection. Because the underlying response stream is left unhandled, this abrupt closure triggers an unhandled error that causes the application process to crash. Consequently, an attacker operating a remote server can cause a Denial of Service (DoS), terminating the application even if standard error handling is implemented.

7.5 (High)


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

Fixed: 28 products

https://access.redhat.com/errata/RHSA-2026:84657

Open the full advisory

RHSA-2026:84706

Vulnerability from csaf_redhat - Published: 2026-10-19 07:29 - Updated: 2026-11-04 15:48

Summary

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

Severity

Important

Scope

8 vulnerabilities in this advisory, including CVE-2026-109869.

CVE-2026-109869

7.5 (High)


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

Fixed: 28 products

https://access.redhat.com/errata/RHSA-2026:84706

Open the full advisory

RHSA-2026:87703

Vulnerability from csaf_redhat - Published: 2026-10-22 03:44 - Updated: 2026-11-04 15:48

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2026-109869.

CVE-2026-109869

7.5 (High)


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

Fixed: 25 products Known not affected: 3 products

https://access.redhat.com/errata/RHSA-2026:87703

Open the full advisory

RHSA-2026:92510

Vulnerability from csaf_redhat - Published: 2026-10-29 15:22 - Updated: 2026-11-04 16:17

Summary

Red Hat Security Advisory: RHOAI 3.4.6 - Red Hat OpenShift AI

Severity

Critical

Scope

106 vulnerabilities in this advisory, including CVE-2026-109869.

CVE-2026-109869

7.5 (High)


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

Fixed: 32 products Known not affected: 289 products

https://access.redhat.com/errata/RHSA-2026:92510

Open the full advisory

RHSA-2026:95081

Vulnerability from csaf_redhat - Published: 2026-11-04 09:49 - Updated: 2026-11-04 16:21

Summary

Red Hat Security Advisory: Cluster Observability Operator - 1.5

Severity

Important

Scope

33 vulnerabilities in this advisory, including CVE-2026-109869.

CVE-2026-109869

7.5 (High)


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

Fixed: 32 products Known not affected: 65 products

https://access.redhat.com/errata/RHSA-2026:95081

Open the full advisory

RHSA-2026:95124

Vulnerability from csaf_redhat - Published: 2026-11-04 13:07 - Updated: 2026-11-04 16:21

Summary

Red Hat Security Advisory: RHTAS 1.5.1 - Red Hat Trusted Artifact Signer Release

Severity

Important

Scope

10 vulnerabilities in this advisory, including CVE-2026-109869.

CVE-2026-109869

7.5 (High)


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

Fixed: 1 product Known not affected: 1 product

https://access.redhat.com/errata/RHSA-2026:95124

Open the full advisory

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-109869 (GCVE-0-2026-109869)

CLEANSTART-2026-LB99880 (CVE-2026-109869)

CLEANSTART-2026-MJ91432 (CVE-2026-109869)

Impact

Patches

Workarounds

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour