What’s Vulnerable › Vulnerabilities

CVE-2026-53486: decompress: Archive extraction can create files and links outside the target directory

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-14 · updated 2026-10-24
• Weakness: CWE-22

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.

Affected products

• XhmikosR decompress: before 10.2.1; from 11.0.0, < 11.1.3

References

• https://github.com/XhmikosR/decompress/commit/281cefa00cd4275c10479bc5f1abba6b14dee8bd
• https://github.com/XhmikosR/decompress/commit/60b5299402e72b0b53ca2e55222e9a1ccb44afae
• https://github.com/XhmikosR/decompress/commit/9fcda4b0a66ca22dc8d337f9b0e7c30293c5fb89
• https://github.com/XhmikosR/decompress/commit/aca5aac415dc04a6fae5200e51368cff436a09dd
• 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

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