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High ALAS2023-2026-1484 3 CVEs

Important: nodejs20 security update (Amazon Linux 2023)

Published Mar 16, 2026 · Updated Mar 27, 2026

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-29786: node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creating a hardlink that points outside the extraction directory by using a drive-relative link target such as C:../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This issue has been patched in version 7.5.10. CVE-2026-26960: node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, enabling arbitrary file read and write as the extracting user. Severity is high because the primitive bypasses path protections and turns archive extraction into a direct filesystem access primitive. This issue has been fixed in version 7.5.8. CVE-2025-5889: A vulnerability was found in juliangruber brace-expansion up to 1.1.11/2.0.1/3.0.0/4.0.0. It has been rated as problematic. Affected by this issue is the function expand of the file index.js. The manipulation leads to inefficient regular expression complexity. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 1.1.12, 2.0.2, 3.0.1 and 4.0.1 is able to address this issue. The name of the patch is a5b98a4f30d7813266b221435e1eaaf25a1b0ac5. It is recommended to upgrade the affected component.

Fixed packages 10

ReleasePackageFixed in
Amazon Linux · 2023 nodejs20 1:20.20.1-1.amzn2023.0.2
Amazon Linux · 2023 nodejs20-debuginfo 1:20.20.1-1.amzn2023.0.2
Amazon Linux · 2023 nodejs20-debugsource 1:20.20.1-1.amzn2023.0.2
Amazon Linux · 2023 nodejs20-devel 1:20.20.1-1.amzn2023.0.2
Amazon Linux · 2023 nodejs20-docs 1:20.20.1-1.amzn2023.0.2
Amazon Linux · 2023 nodejs20-full-i18n 1:20.20.1-1.amzn2023.0.2
Amazon Linux · 2023 nodejs20-libs 1:20.20.1-1.amzn2023.0.2
Amazon Linux · 2023 nodejs20-libs-debuginfo 1:20.20.1-1.amzn2023.0.2
Amazon Linux · 2023 nodejs20-npm 1:10.8.2-1.20.20.1.1.amzn2023.0.2
Amazon Linux · 2023 v8-11.3-devel 3:11.3.244.8-1.20.20.1.1.amzn2023.0.2

Vulnerabilities 3

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2025-5889.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-26960.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-29786.html