CVE-2026-113723

virtualenv: Bash prompt values can change meaning under older compatibility modes

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, caller-supplied prompt text can become executable syntax in the bash activation prompt. An attacker must influence the value passed to virtualenv, and a user must subsequently activate the environment and draw the prompt. This vulnerability is fixed in 21.14.9.

Affected

pypa · virtualenv

CVSS v4.0 GITHUB

7.1 HIGHCVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v4.0 GitHub

7.1 HIGHCVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS

0.24% chance of exploitation in the next 30 days, 15th percentile

Published

2026-10-20

Updated

2026-10-27

Proof-of-concept exploits (1)

• advisories/GHSA-6w3r-xr62-4xcpfind archive

CVE references

• pypa/virtualenv/commit/5f48d711731311428aebfae61d46957762155b22REFERENCE
• pypa/virtualenv/pull/3418REFERENCE
• pypa/virtualenv/releases/tag/21.14.9REFERENCE
• pypa/virtualenv/security/advisories/GHSA-6w3r-xr62-4xcpREFERENCE

References

• CVE Record
• NVD entry