CVE-2026-13346 Affecting py3.14-virtualenv package, versions <21.7.8-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.29% (22nd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-PY314VIRTUALENV-19641726
  • published8 Sept 2026
  • disclosed29 Jul 2026

Introduced: 29 Jul 2026

CVE-2026-13346  (opens in a new tab)

How to fix?

Upgrade Chainguard py3.14-virtualenv to version 21.7.8-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream py3.14-virtualenv package and not the py3.14-virtualenv package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.

This vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running pip download with the --only-binary option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.

CVSS Base Scores

version 3.1