Path Traversal in Xhmikosr Decompress
CVE-2026-53486
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.007 (54.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Xhmikosr Decompress — versions < 10.2.1, >= 11.0.0, < 11.1.3
Weakness classification (CWE)
References
- github.com/XhmikosR/decompress/security/advisories/GHSA-mp2f-45pm-3cg9
- github.com/XhmikosR/decompress/commit/281cefa00cd4275c10479bc5f1abba6b14dee8bd
- github.com/XhmikosR/decompress/commit/60b5299402e72b0b53ca2e55222e9a1ccb44afae
- github.com/XhmikosR/decompress/commit/9fcda4b0a66ca22dc8d337f9b0e7c30293c5fb89
- github.com/XhmikosR/decompress/commit/aca5aac415dc04a6fae5200e51368cff436a09dd
- github.com/XhmikosR/decompress/releases/tag/v10.2.1
- github.com/XhmikosR/decompress/releases/tag/v11.1.3
Frequently asked questions
- What is CVE-2026-53486?
- CVE-2026-53486 is a critical-severity vulnerability in Xhmikosr Decompress, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-07-14.
- How severe is CVE-2026-53486?
- Critical severity. CVSS v3 base score is 9.1 out of 10.