CVE-2026-53486
decompress: Archive extraction can create files and links outside the target directory
- State
- Published
- Severity
- 9.1 Critical
- Published
- Jul 14, 2026
- Updated
- Jul 15, 2026
- Reserved
- Jun 9, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
decompressXhmikosR |
|
References
- https://github.com/XhmikosR/decompress/security/advisories/GHSA-mp2f-45pm-3cg9
- 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
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