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CVE-2026-106057

7.8 · HIGH

patool before 4.0.6 contains an OS command injection vulnerability on Windows because shell_quote_nt fails to escape cmd.exe metacharacters or embedded double quotes in archive filenames.

Published Oct 7, 2026CWE-78EPSS 0.75%

Overview

CVE-2026-106057 is a high-severity vulnerability. It was published on October 7, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

patool before 4.0.6 contains an OS command injection vulnerability on Windows because shell_quote_nt fails to escape cmd.exe metacharacters or embedded double quotes in archive filenames. Attackers can supply crafted filenames like report&calc.gz for single-file formats run with shell=True to execute commands with patool process privileges.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/wummel/patoolGitHubgithub.com/wummel/patool/blob/4.0.5/patoolib/util.py#L110-L116GitHubgithub.com/wummel/patool/commit/592f35761f428afbcde2888ecd3cc4af43881aebRefwww.vulncheck.com/advisories/patool-before-4.0.6-os-command-injection-on-windows-via-shell-quote-nt

How CyberStrike helps

Frequently asked questions

What is CVE-2026-106057?

CVE-2026-106057 is a high-severity vulnerability. It was published on October 7, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-106057?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-106057?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-106057?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-106057 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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