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CVE-2026-13346

5.6 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.6 · pypaNVD modified 2026-10-24 13:10

Affected (CPE criteria) 1

  • cpe:2.3:a:pypa:pip:*:*:*:*:*:*:*:*

References 3