CVE-2026-13346
Description
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.
How to fix
- pypa pip26.2 or later
- pip26.2.0, 26.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pypa pip | v < 26.2 | 26.2 |
| pipPyPI | v < 26.2.0, v < 26.2 | 26.2.0, 26.2 |
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Attack Surface Management
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