CVE-2026-19693

Summary

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.

Affected Software

VendorProductVersion RangeStatus
max-mapperextract-zip1.0.0 <= 2.0.1affected

Weaknesses

  • CWE-59: CWE-59 Improper Link Resolution Before File Access ('Link Following')
  • CWE-22: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References