RHSA-2026:75864

Vulnerability from csaf_opensuse - Published: 2026-10-05 16:16 - Updated: 2026-10-07 19:34
Summary
Red Hat Security Advisory: nodejs22 security update
Severity
Important
Notes
Topic: An update for nodejs22 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Node.js is a platform built on Chrome's JavaScript runtime \ for easily building fast, scalable network applications. \ Node.js uses an event-driven, non-blocking I/O model that \ makes it lightweight and efficient, perfect for data-intensive \ real-time applications that run across distributed devices. Security Fix(es): * pacote: Pacote: Denial of Service via crafted spec.rawSpec value in addGitSha function (CVE-2026-9496) * undici: undici: Denial of Service via unrequested WebSocket subprotocol (CVE-2026-19534) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
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.

A flaw was found in the pacote component. A remote attacker can exploit this denial of service (DoS) vulnerability by providing a specially crafted input to the `addGitSha` function. This malicious input triggers excessive CPU consumption due to regex replacement and string manipulation, which can lead to the process stalling or crashing.

CWE-1333 - Inefficient Regular Expression Complexity
Affected products
Product Identifier Version Remediation
Unresolved product id: AppStream-10.2.Z:nodejs-1:22.23.2-3.el10_2.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-1:22.23.2-3.el10_2.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-1:22.23.2-3.el10_2.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-1:22.23.2-3.el10_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-debuginfo-1:22.23.2-3.el10_2.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-debuginfo-1:22.23.2-3.el10_2.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-debuginfo-1:22.23.2-3.el10_2.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-debuginfo-1:22.23.2-3.el10_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-devel-1:22.23.2-3.el10_2.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-devel-1:22.23.2-3.el10_2.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-devel-1:22.23.2-3.el10_2.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-devel-1:22.23.2-3.el10_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-docs-1:22.23.2-3.el10_2.noarch —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-full-i18n-1:22.23.2-3.el10_2.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-full-i18n-1:22.23.2-3.el10_2.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-full-i18n-1:22.23.2-3.el10_2.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-full-i18n-1:22.23.2-3.el10_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-libs-1:22.23.2-3.el10_2.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-libs-1:22.23.2-3.el10_2.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-libs-1:22.23.2-3.el10_2.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-libs-1:22.23.2-3.el10_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-libs-debuginfo-1:22.23.2-3.el10_2.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-libs-debuginfo-1:22.23.2-3.el10_2.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-libs-debuginfo-1:22.23.2-3.el10_2.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-libs-debuginfo-1:22.23.2-3.el10_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-npm-1:10.9.8-1.22.23.2.3.el10_2.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-npm-1:10.9.8-1.22.23.2.3.el10_2.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-npm-1:10.9.8-1.22.23.2.3.el10_2.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs-npm-1:10.9.8-1.22.23.2.3.el10_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs22-1:22.23.2-3.el10_2.src —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs22-debuginfo-1:22.23.2-3.el10_2.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs22-debuginfo-1:22.23.2-3.el10_2.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs22-debuginfo-1:22.23.2-3.el10_2.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs22-debuginfo-1:22.23.2-3.el10_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs22-debugsource-1:22.23.2-3.el10_2.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs22-debugsource-1:22.23.2-3.el10_2.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs22-debugsource-1:22.23.2-3.el10_2.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-10.2.Z:nodejs22-debugsource-1:22.23.2-3.el10_2.x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Important

A flaw was found in undici. A remote attacker can exploit this vulnerability by responding with an unrequested WebSocket subprotocol during the opening handshake. This causes the undici WebSocket client to crash the entire Node.js process, leading to a denial of service (DoS).

CWE-476 - NULL Pointer Dereference
Affected products
Fixed 38 products, the same list as for CVE-2026-9496
Threats
Impact Important

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          "text": "pacote: Pacote: Denial of Service via crafted spec.rawSpec value in addGitSha function",
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          "text": "A flaw was found in the pacote npm package. Pacote retrieves package metadata and archives from npm registries, Git repositories, and other sources. In affected versions, the addGitSha function strips Git committish information from a package specification using a regular expression that is vulnerable to inefficient backtracking. An attacker who can supply a crafted spec.rawSpec value can cause the Node.js process that calls pacote to consume excessive CPU and become unresponsive, resulting in denial of service.\n\nRed Hat products that include pacote versions from 11.2.7 up to (but not including) 21.5.1 may be affected when Node.js workloads process package specifications through pacote or through npm operations that depend on pacote. The impact is limited to the Node.js process performing that work; host operating systems are not directly affected.",
          "title": "Statement"
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          "title": "Vulnerability description"
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            "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"
          },
          "products": [
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "undici: undici: Denial of Service via unrequested WebSocket subprotocol"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

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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.


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