max-mapper/extract-zip · Security
extract-zip allows arbitrary file writes through symlink archive entries
- GHSA ID
- GHSA-7pqw-9j4j-h8q3
- CVE ID
- CVE-2026-19693
- Severity
- high
- Published
- Updated
- CVSS
- 8.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
- CVSS v3
- 8.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
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.
CWEs
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')