Vulnerability Description
The decompress package for Node.js extracts archives. Prior to 10.2.1 and 11.1.3, archive extraction can create files and links outside the target directory. When extracting an archive to a directory, a crafted archive can read or write files outside that directory because hardlink and symlink entries are created without checking where targets point, path containment used a string prefix comparison, and file modes failed to remove setuid, setgid, or sticky bits. This issue is fixed in @xhmikosr/decompress versions 10.2.1 and 11.1.3.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/XhmikosR/decompress/commit/281cefa00cd4275c10479bc5f1abba6b14
- https://github.com/XhmikosR/decompress/commit/60b5299402e72b0b53ca2e55222e9a1ccb
- https://github.com/XhmikosR/decompress/commit/9fcda4b0a66ca22dc8d337f9b0e7c30293
- https://github.com/XhmikosR/decompress/commit/aca5aac415dc04a6fae5200e51368cff43
- https://github.com/XhmikosR/decompress/releases/tag/v10.2.1
- https://github.com/XhmikosR/decompress/releases/tag/v11.1.3
- https://github.com/XhmikosR/decompress/security/advisories/GHSA-mp2f-45pm-3cg9
FAQ
What is CVE-2026-53486?
CVE-2026-53486 is a vulnerability with a CVSS score of 9.1 (CRITICAL). The decompress package for Node.js extracts archives. Prior to 10.2.1 and 11.1.3, archive extraction can create files and links outside the target directory. When extracting an archive to a directory,...
How severe is CVE-2026-53486?
CVE-2026-53486 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-53486?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.