Command Injection Affecting patool package, versions [,4.0.6)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-PATOOL-20877495
- published13 Oct 2026
- disclosed7 Oct 2026
- creditUnknown
Introduced: 7 Oct 2026
NewCVE-2026-106057 (opens in a new tab)How to fix?
Upgrade patool to version 4.0.6 or higher.
Overview
patool is a portable archive file manager
Affected versions of this package are vulnerable to Command Injection via the shell_quote_nt function in patoolib/util.py, which fails to escape Windows shell metacharacters (such as ^, &, |, <, >, ", !) and percent signs in arguments passed to shell commands on Windows systems. An attacker can supply a malicious archive filename or path containing these metacharacters to inject arbitrary shell commands that execute with the privileges of the invoking user.