Arbitrary Code Injection The advisory has been revoked - it doesn't affect any version of package python3.11-virtualenv (opens in a new tab)
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-RHEL10-PYTHON311VIRTUALENV-21342939
- published21 Oct 2026
- disclosed20 Oct 2026
Introduced: 20 Oct 2026
NewCVE-2026-113732 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python3.11-virtualenv package and not the python3.11-virtualenv package as distributed by RHEL.
virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.2, FishActivator inherits ViaTemplateActivator.quote(), which uses POSIX shlex.quote() even though fish interprets backslashes and single quotes differently. An attacker-influenced environment path, --prompt, or VIRTUALENV_PROMPT value containing a backslash before a quote can therefore terminate the generated fish literal and execute command substitution when the user sources activate.fish. This issue is fixed in version 21.14.2.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2557255
- https://access.redhat.com/security/cve/CVE-2026-113732
- https://github.com/pypa/virtualenv/commit/3bddeaf8d02c3ee7f576503efb082f8f494cfcab
- https://github.com/pypa/virtualenv/releases/tag/21.14.2
- https://github.com/pypa/virtualenv/security/advisories/GHSA-c947-3pg5-gm8q