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CVE-2026-29509

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score
5.4 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Vulnerability Description

Patool before 4.0.5 contains a path traversal vulnerability in the safe_extract() function in patoolib/programs/py_tarfile.py when running on Python before 3.12, where the is_within_directory() helper uses os.path.commonprefix() for character-level string comparison instead of path-level comparison, allowing a crafted archive member path to bypass the containment check. Attackers can supply a malicious archive with specially crafted member paths to write arbitrary files.

Vulnerability Details

Published Date
Last Modified
CWE ID
CWE-22
Source
NVD
Vendor
wummel
Product
patool

External References

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