CVE-2026-113713virtualenv: Temporary app-data can leave dangling seed package links
Updated under an hour ago ()
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It affects pypa virtualenv. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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virtualenv is a tool for creating isolated virtual python environments. From 21.14.8 until 21.14.10, the app-data seeder can leave an environment linked to temporary package files that virtualenv deletes when creation finishes. The environment-variable and configuration-file forms of symlink_app_data can enable this state even though the command-line flag is disabled for temporary app-data. The resulting environment depends on a cache pathname that its owner no longer controls. This issue is fixed in version 21.14.10.
- CVSS
- 4.4 MEDIUM (v4.0, CNA)CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-377
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 20, 2026
- First seen by InfoSec Signals
- Oct 20, 2026
Affected products
pypa virtualenv pypa:virtualenv (from the name) | from 21.14.8, < 21.14.10 | CNA record |
References
- https://github.com/pypa/virtualenv/security/advisories/GHSA-4f8h-vr72-p32cx-refsource-confirm
- https://github.com/pypa/virtualenv/pull/3437x-refsource-misc
- https://github.com/pypa/virtualenv/commit/b81995c3feab9e1edb453c75ffc6616e1a77335ex-refsource-misc
- https://github.com/pypa/virtualenv/releases/tag/21.14.10x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.