Description
extract-zip through 2.0.1 containment-checks only the parent directory of each archive entry and never the entry's own final path component, so an archive containing two entries with identical names - a symlink whose target is outside the destination, followed by a regular file - writes through the planted symlink and yields an arbitrary file write outside the destination directory.
Metrics
CVSS 3.1 8.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:HWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Aug 17, 2026
- Last modified
- Sep 9, 2026
- NVD status
- Deferred