CVE-2026-106057

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/wummel/patool
https://github.com/wummel/patool/blob/4.0.5/patoolib/util.py#L110-L116
https://github.com/wummel/patool/commit/592f35761f428afbcde2888ecd3cc4af43881aeb
https://www.vulncheck.com/advisories/patool-before-4.0.6-os-command-injection-on-windows-via-shell-quote-nt

Configurations

No configuration.

History

07 Oct 2026, 12:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-07 12:17

Updated : 2026-10-07 16:02

NVD link : CVE-2026-106057

Mitre link : CVE-2026-106057

CVE.ORG link : CVE-2026-106057

JSON object : View

Products Affected

No product.

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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