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VULNERABILITIES

CVE-2026-113732 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/pypa/virtualenv/commit/3bddeaf8d02c3ee7f576503efb082f8f494cfcab [email protected]
https://github.com/pypa/virtualenv/releases/tag/21.14.2 [email protected]
https://github.com/pypa/virtualenv/security/advisories/GHSA-c947-3pg5-gm8q [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-116Improper Encoding or Escaping of Output[email protected]
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-113732
NVD Published Date:
Oct 20, 2026
NVD Last Modified:
Oct 27, 2026
Source:
[email protected]
CVE-2026-113732 Details - Not Deferred