virtualenv: Xonsh activation literals depend on the script decoding codec
High-risk advisory
CVE-2026-113718
Summary
virtualenv: Xonsh activation literals depend on the script decoding codec
Why it matters
GitHub has published a reviewed security advisory for virtualenv. Prioritize it with other application dependency updates, especially because EPSS places it in the 3% percentile.
Operator check
Check whether virtualenv is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 7.1. EPSS probability: 0.1%; percentile: 3%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.