RHSA-2026:7387

Vulnerability from csaf_redhat - Published: 2026-04-10 16:03 - Updated: 2026-04-20 21:34
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs: nodejs22: * nodejs22-22.22.0-1.3.hum1 (aarch64, x86_64) * nodejs22-bin-22.22.0-1.3.hum1 (noarch) * nodejs22-devel-22.22.0-1.3.hum1 (aarch64, x86_64) * nodejs22-docs-22.22.0-1.3.hum1 (noarch) * nodejs22-full-i18n-22.22.0-1.3.hum1 (aarch64, x86_64) * nodejs22-libs-22.22.0-1.3.hum1 (aarch64, x86_64) * nodejs22-npm-10.9.4-1.22.22.0.1.3.hum1 (noarch) * nodejs22-npm-bin-22.22.0-1.3.hum1 (noarch) * v8-12.4-devel-12.4.254.21-1.22.22.0.1.3.hum1 (aarch64, x86_64) * nodejs22-22.22.0-1.3.hum1.src (src)
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-2025-55130

A flaw in Node.js’s Permissions model allows attackers to bypass `--allow-fs-read` and `--allow-fs-write` restrictions using crafted relative symlink paths. By chaining directories and symlinks, a script granted access only to the current directory can escape the allowed path and read sensitive files. This breaks the expected isolation guarantees and enables arbitrary file read/write.

7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE-281 - Improper Preservation of Permissions
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:7387
Workaround Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVE-2025-55131

A memory exposure flaw has been discovered in Node.js. A flaw in Node.js's buffer allocation logic can expose uninitialized memory when allocations are interrupted, when using the `vm` module with the timeout option. Under specific timing conditions, buffers allocated with `Buffer.alloc` and other `TypedArray` instances like `Uint8Array` may contain leftover data from previous operations, allowing in-process secrets like tokens or passwords to leak or causing data corruption.

7.1 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
CWE-497 - Exposure of Sensitive System Information to an Unauthorized Control Sphere
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:7387
Workaround Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVE-2025-55132

A file access flaw has been discovered in NodeJS. A file's access and modification timestamps to be changed via `futimes()` even when the process has only read permissions. Unlike `utimes()`, `futimes()` does not apply the expected write-permission checks, which means file metadata can be modified in read-only directories. This behavior could be used to alter timestamps in ways that obscure activity, reducing the reliability of logs.

5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-281 - Improper Preservation of Permissions
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:7387
Workaround Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVE-2025-59464

A resource consumption flaw has been discovered in NodeJS. A memory leak in Node.js’s OpenSSL integration occurs when converting `X.509` certificate fields to UTF-8 without freeing the allocated buffer. When applications call `socket.getPeerCertificate(true)`, each certificate field leaks memory, allowing remote clients to trigger steady memory growth through repeated TLS connections. Over time this can lead to resource exhaustion and denial of service.

6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:7387
Workaround Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVE-2025-59465

A denial of service flaw has been discovered in NodeJS. A malformed `HTTP/2 HEADERS` frame with oversized, invalid `HPACK` data can cause Node.js to crash by triggering an unhandled `TLSSocket` error `ECONNRESET`. Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-248 - Uncaught Exception
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:7387
Workaround Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVE-2025-59466

A stack overflow flaw has been discovered in Node.js error handling where "Maximum call stack size exceeded" errors become uncatchable when `async_hooks.createHook()` is enabled. Instead of reaching `process.on('uncaughtException')`, the process terminates, making the crash unrecoverable. Applications that rely on `AsyncLocalStorage` (v22, v20) or `async_hooks.createHook()` (v24, v22, v20) become vulnerable to denial-of-service crashes triggered by deep recursion under specific conditions.

5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:7387
Workaround Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVE-2026-21636

A flaw in Node.js's permission model allows Unix Domain Socket (UDS) connections to bypass network restrictions when `--permission` is enabled. Even without `--allow-net`, attacker-controlled inputs (such as URLs or socketPath options) can connect to arbitrary local sockets via net, tls, or undici/fetch. This breaks the intended security boundary of the permission model and enables access to privileged local services, potentially leading to privilege escalation, data exposure, or local code execution.

5.8 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CWE-281 - Improper Preservation of Permissions
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:7387
Workaround Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVE-2026-21637

A flaw in Node.js TLS error handling allows remote attackers to crash or exhaust resources of a TLS server when `pskCallback` or `ALPNCallback` are in use. Synchronous exceptions thrown during these callbacks bypass standard TLS error handling paths (tlsClientError and error), causing either immediate process termination or silent file descriptor leaks that eventually lead to denial of service. Because these callbacks process attacker-controlled input during the TLS handshake, a remote client can repeatedly trigger the issue. This vulnerability affects TLS servers using PSK or ALPN callbacks across Node.js versions where these callbacks throw without being safely wrapped.

5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-248 - Uncaught Exception
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:7387
Workaround Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVE-2026-21716

A flaw was found in Node.js. An incomplete security fix allows code operating under restricted file system write permissions to bypass these limitations. This vulnerability enables the modification of file permissions and ownership on already-open files, even when explicit write access is denied. Such a bypass could lead to unauthorized changes to system files.

3.8 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
CWE-279 - Incorrect Execution-Assigned Permissions
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:7387
Workaround Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVE-2026-21717

A flaw was found in V8's string hashing mechanism within Node.js. A remote attacker can exploit this vulnerability by crafting requests containing integer-like strings. These specially crafted strings cause predictable hash collisions in V8's internal string table, particularly when processed by functions like JSON.parse() on attacker-controlled input. This can significantly degrade the performance of the Node.js process, leading to a Denial of Service (DoS) condition.

5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-328 - Use of Weak Hash
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:7387
Workaround Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
References
https://access.redhat.com/errata/RHSA-2026:7387 self
https://images.redhat.com/ external
https://access.redhat.com/security/cve/CVE-2026-21637 external
https://access.redhat.com/security/updates/classi… external
https://access.redhat.com/security/cve/CVE-2026-21636 external
https://access.redhat.com/security/cve/CVE-2025-59466 external
https://access.redhat.com/security/cve/CVE-2025-59465 external
https://access.redhat.com/security/cve/CVE-2025-59464 external
https://access.redhat.com/security/cve/CVE-2025-55132 external
https://access.redhat.com/security/cve/CVE-2025-55131 external
https://access.redhat.com/security/cve/CVE-2025-55130 external
https://access.redhat.com/security/cve/CVE-2026-21717 external
https://access.redhat.com/security/cve/CVE-2026-21716 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2025-55130 self
https://bugzilla.redhat.com/show_bug.cgi?id=2431352 external
https://www.cve.org/CVERecord?id=CVE-2025-55130 external
https://nvd.nist.gov/vuln/detail/CVE-2025-55130 external
https://nodejs.org/en/blog/vulnerability/december… external
https://access.redhat.com/security/cve/CVE-2025-55131 self
https://bugzilla.redhat.com/show_bug.cgi?id=2431350 external
https://www.cve.org/CVERecord?id=CVE-2025-55131 external
https://nvd.nist.gov/vuln/detail/CVE-2025-55131 external
https://access.redhat.com/security/cve/CVE-2025-55132 self
https://bugzilla.redhat.com/show_bug.cgi?id=2431338 external
https://www.cve.org/CVERecord?id=CVE-2025-55132 external
https://nvd.nist.gov/vuln/detail/CVE-2025-55132 external
https://access.redhat.com/security/cve/CVE-2025-59464 self
https://bugzilla.redhat.com/show_bug.cgi?id=2431344 external
https://www.cve.org/CVERecord?id=CVE-2025-59464 external
https://nvd.nist.gov/vuln/detail/CVE-2025-59464 external
https://access.redhat.com/security/cve/CVE-2025-59465 self
https://bugzilla.redhat.com/show_bug.cgi?id=2431349 external
https://www.cve.org/CVERecord?id=CVE-2025-59465 external
https://nvd.nist.gov/vuln/detail/CVE-2025-59465 external
https://access.redhat.com/security/cve/CVE-2025-59466 self
https://bugzilla.redhat.com/show_bug.cgi?id=2431343 external
https://www.cve.org/CVERecord?id=CVE-2025-59466 external
https://nvd.nist.gov/vuln/detail/CVE-2025-59466 external
https://access.redhat.com/security/cve/CVE-2026-21636 self
https://bugzilla.redhat.com/show_bug.cgi?id=2431342 external
https://www.cve.org/CVERecord?id=CVE-2026-21636 external
https://nvd.nist.gov/vuln/detail/CVE-2026-21636 external
https://access.redhat.com/security/cve/CVE-2026-21637 self
https://bugzilla.redhat.com/show_bug.cgi?id=2431340 external
https://www.cve.org/CVERecord?id=CVE-2026-21637 external
https://nvd.nist.gov/vuln/detail/CVE-2026-21637 external
https://access.redhat.com/security/cve/CVE-2026-21716 self
https://bugzilla.redhat.com/show_bug.cgi?id=2453157 external
https://www.cve.org/CVERecord?id=CVE-2026-21716 external
https://nvd.nist.gov/vuln/detail/CVE-2026-21716 external
https://nodejs.org/en/blog/vulnerability/march-20… external
https://access.redhat.com/security/cve/CVE-2026-21717 self
https://bugzilla.redhat.com/show_bug.cgi?id=2453162 external
https://www.cve.org/CVERecord?id=CVE-2026-21717 external
https://nvd.nist.gov/vuln/detail/CVE-2026-21717 external
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            "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"
          },
          "products": [
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            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "nodejs: Nodejs denial of service"
    },
    {
      "cve": "CVE-2025-59466",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-01-20T21:01:46.025710+00:00",
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        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2431343"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A stack overflow flaw has been discovered in Node.js error handling where \"Maximum call stack size exceeded\" errors become uncatchable when `async_hooks.createHook()` is enabled. Instead of reaching `process.on(\u0027uncaughtException\u0027)`, the process terminates, making the crash unrecoverable. Applications that rely on `AsyncLocalStorage` (v22, v20) or `async_hooks.createHook()` (v24, v22, v20) become vulnerable to denial-of-service crashes triggered by deep recursion under specific conditions.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "nodejs: Nodejs denial of service",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw requires that the experimental Async hook feature is enabled for use in NodeJS. This feature is not enabled by default on Red Hat systems.",
          "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"
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      ],
      "product_status": {
        "fixed": [
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          "Red Hat Hardened Images:nodejs22-main@noarch",
          "Red Hat Hardened Images:nodejs22-main@src",
          "Red Hat Hardened Images:nodejs22-main@x86_64"
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      },
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          "category": "self",
          "summary": "Canonical URL",
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        {
          "category": "external",
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        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-59466",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-59466"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-59466",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59466"
        },
        {
          "category": "external",
          "summary": "https://nodejs.org/en/blog/vulnerability/december-2025-security-releases",
          "url": "https://nodejs.org/en/blog/vulnerability/december-2025-security-releases"
        }
      ],
      "release_date": "2026-01-20T20:41:55.628000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-04-10T16:03:53+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:nodejs22-main@aarch64",
            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:7387"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
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            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
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        }
      ],
      "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:nodejs22-main@aarch64",
            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "nodejs: Nodejs denial of service"
    },
    {
      "cve": "CVE-2026-21636",
      "cwe": {
        "id": "CWE-281",
        "name": "Improper Preservation of Permissions"
      },
      "discovery_date": "2026-01-20T21:01:41.174266+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2431342"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw in Node.js\u0027s permission model allows Unix Domain Socket (UDS) connections to bypass network restrictions when `--permission` is enabled. Even without `--allow-net`, attacker-controlled inputs (such as URLs or socketPath options) can connect to arbitrary local sockets via net, tls, or undici/fetch. This breaks the intended security boundary of the permission model and enables access to privileged local services, potentially leading to privilege escalation, data exposure, or local code execution.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "nodejs: Nodejs network segmentation bypass",
          "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": {
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          "Red Hat Hardened Images:nodejs22-main@noarch",
          "Red Hat Hardened Images:nodejs22-main@src",
          "Red Hat Hardened Images:nodejs22-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-21636"
        },
        {
          "category": "external",
          "summary": "RHBZ#2431342",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2431342"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-21636",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-21636"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-21636",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21636"
        },
        {
          "category": "external",
          "summary": "https://nodejs.org/en/blog/vulnerability/december-2025-security-releases",
          "url": "https://nodejs.org/en/blog/vulnerability/december-2025-security-releases"
        }
      ],
      "release_date": "2026-01-20T20:41:55.700000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-04-10T16:03:53+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:nodejs22-main@aarch64",
            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:7387"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
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            "Red Hat Hardened Images:nodejs22-main@noarch",
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            "Red Hat Hardened Images:nodejs22-main@x86_64"
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        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
          },
          "products": [
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            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "nodejs: Nodejs network segmentation bypass"
    },
    {
      "cve": "CVE-2026-21637",
      "cwe": {
        "id": "CWE-248",
        "name": "Uncaught Exception"
      },
      "discovery_date": "2026-01-20T21:01:26.738343+00:00",
      "ids": [
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          "system_name": "Red Hat Bugzilla ID",
          "text": "2431340"
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      ],
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        {
          "category": "description",
          "text": "A flaw in Node.js TLS error handling allows remote attackers to crash or exhaust resources of a TLS server when `pskCallback` or `ALPNCallback` are in use. Synchronous exceptions thrown during these callbacks bypass standard TLS error handling paths (tlsClientError and error), causing either immediate process termination or silent file descriptor leaks that eventually lead to denial of service. Because these callbacks process attacker-controlled input during the TLS handshake, a remote client can repeatedly trigger the issue. This vulnerability affects TLS servers using PSK or ALPN callbacks across Node.js versions where these callbacks throw without being safely wrapped.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "nodejs: Nodejs denial of service",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Systems configured according to Red Hat guidelines should have their services set to restart in the event of a process crash. This Host system service management mitigates the availability impact to Red Hat customers.",
          "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": {
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          "Red Hat Hardened Images:nodejs22-main@noarch",
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          "Red Hat Hardened Images:nodejs22-main@x86_64"
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      },
      "references": [
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-21637"
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        {
          "category": "external",
          "summary": "RHBZ#2431340",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2431340"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-21637",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-21637"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-21637",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21637"
        },
        {
          "category": "external",
          "summary": "https://nodejs.org/en/blog/vulnerability/december-2025-security-releases",
          "url": "https://nodejs.org/en/blog/vulnerability/december-2025-security-releases"
        }
      ],
      "release_date": "2026-01-20T20:41:55.352000+00:00",
      "remediations": [
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          "category": "vendor_fix",
          "date": "2026-04-10T16:03:53+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": [
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          "restart_required": {
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          "url": "https://access.redhat.com/errata/RHSA-2026:7387"
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          "category": "workaround",
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          "product_ids": [
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            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
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      "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": [
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            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "nodejs: Nodejs denial of service"
    },
    {
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      "cwe": {
        "id": "CWE-279",
        "name": "Incorrect Execution-Assigned Permissions"
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      "discovery_date": "2026-03-30T20:01:51.136802+00:00",
      "ids": [
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          "system_name": "Red Hat Bugzilla ID",
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          "text": "A flaw was found in Node.js. An incomplete security fix allows code operating under restricted file system write permissions to bypass these limitations. This vulnerability enables the modification of file permissions and ownership on already-open files, even when explicit write access is denied. Such a bypass could lead to unauthorized changes to system files.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix.",
          "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": {
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          "Red Hat Hardened Images:nodejs22-main@noarch",
          "Red Hat Hardened Images:nodejs22-main@src",
          "Red Hat Hardened Images:nodejs22-main@x86_64"
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      },
      "references": [
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          "category": "self",
          "summary": "Canonical URL",
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          "category": "external",
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        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-21716",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21716"
        },
        {
          "category": "external",
          "summary": "https://nodejs.org/en/blog/vulnerability/march-2026-security-releases",
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        }
      ],
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          "category": "vendor_fix",
          "date": "2026-04-10T16:03:53+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": [
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          "url": "https://access.redhat.com/errata/RHSA-2026:7387"
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            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
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      "scores": [
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            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 3.8,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.1"
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          "products": [
            "Red Hat Hardened Images:nodejs22-main@aarch64",
            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix."
    },
    {
      "cve": "CVE-2026-21717",
      "cwe": {
        "id": "CWE-328",
        "name": "Use of Weak Hash"
      },
      "discovery_date": "2026-03-30T20:02:10.986695+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2453162"
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          "text": "A flaw was found in V8\u0027s string hashing mechanism within Node.js. A remote attacker can exploit this vulnerability by crafting requests containing integer-like strings. These specially crafted strings cause predictable hash collisions in V8\u0027s internal string table, particularly when processed by functions like JSON.parse() on attacker-controlled input. This can significantly degrade the performance of the Node.js process, leading to a Denial of Service (DoS) condition.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions",
          "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": [
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          "Red Hat Hardened Images:nodejs22-main@noarch",
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          "Red Hat Hardened Images:nodejs22-main@x86_64"
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      },
      "references": [
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-21717"
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          "category": "external",
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        {
          "category": "external",
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21717"
        },
        {
          "category": "external",
          "summary": "https://nodejs.org/en/blog/vulnerability/march-2026-security-releases",
          "url": "https://nodejs.org/en/blog/vulnerability/march-2026-security-releases"
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      "remediations": [
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            "Red Hat Hardened Images:nodejs22-main@aarch64",
            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:7387"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
            "Red Hat Hardened Images:nodejs22-main@aarch64",
            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
          ]
        }
      ],
      "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:nodejs22-main@aarch64",
            "Red Hat Hardened Images:nodejs22-main@noarch",
            "Red Hat Hardened Images:nodejs22-main@src",
            "Red Hat Hardened Images:nodejs22-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.