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.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-23dc582dae advisory.

    Bump to 4.1.0 (rhbz#2421500 and rhbz#2508373)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-3a35235bd6 advisory.

    Bump to 4.1.0 (rhbz#2421500 and rhbz#2508373)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 46 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-d38857d084 advisory.

    Automatic update for patool-4.1.0-1.fc46.

    ##### **Changelog**

    ```
    * Sun Sep 13 2026 Federico Pellegrin <fede@evolware.org> - 4.1.0-1
    - Bump to 4.1.0 (rhbz#2421500 and rhbz#2508373)

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-29509)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
349775	Fedora 44 : patool (2026-23dc582dae)	Nessus	Fedora Local Security Checks	Local	medium
349769	Fedora 45 : patool (2026-3a35235bd6)	Nessus	Fedora Local Security Checks	Local	medium
349724	Fedora 46 : patool (2026-d38857d084)	Nessus	Fedora Local Security Checks	Local	medium
323292	Linux Distros Unpatched Vulnerability : CVE-2026-29509	Nessus	Misc.	Local	medium

Detections

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CVE-2026-29509

medium

Tenable Plugins

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