CVE-2026-113722: virtualenv · Generated POSIX console launchers interpret destination paths as shell syntax
Affects poetrySource GCVE Database
Not known to be exploited · CVSS 7.8 High : upgrade to 2.5.1_1 or 1.2.2_1 soon.
Data as of 30 Oct 2026, 08:17 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 7.8 |
|---|
- Patch
- Available – fixed in 2.5.1_1, 1.2.2_1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 20 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade poetry to 2.5.1_1 or 1.2.2_1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Homebrewpoetrypkg:brew/poetryOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available in virtualenv versions 2.5.1_1 and 1.2.2_1 that properly quotes the interpreter path to prevent shell expansion. Users should upgrade to these fixed versions or later. Until then, avoid running POSIX console launchers generated by virtualenv or pip in environments where the destination path could be attacker-controlled.
Description
A vulnerability in virtualenv's POSIX console launcher generation allows attacker-controlled destination paths to be interpreted as shell syntax. This occurs because the interpreter path is not properly escaped in the shell wrapper, enabling shell command injection when running generated launchers. The issue affects POSIX console scripts created by virtualenv's app-data seeder or pip when a shell wrapper is required. Windows executable launchers are not affected. Exploitation requires an attacker to influence the environment destination path and the user to run the generated launcher, resulting in execution of arbitrary shell commands with the user's privileges.
References
- github.com/pypa/virtualenv/security/advisories/GHSA-c978-59m8-c77v (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-113722 (opens in a new tab)
- github.com/pypa/virtualenv/pull/3417 (opens in a new tab)
- github.com/pypa/virtualenv/commit/2519941bed33ee0d3ac99277f67913e439e476a9 (opens in a new tab)
- github.com/pypa/virtualenv (opens in a new tab)
- github.com/pypa/virtualenv/releases/tag/21.14.9 (opens in a new tab)