CVE-2026-13346
Published: July 31, 2026Last modified: September 9, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | HIGH |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | py3-pip | Fixed (22.3.1-r6) |
| 25 LTS | py3-pip | Fixed (25.1.1-r3) | |
| Stream | py3-pip | Fixed (26.2-r0) | |
| Hardened Containers | 23 LTS | py3-pip | Fixed (22.3.1-r6) |
| 25 LTS | py3-pip | Fixed (25.1.1-r3) | |
| Stream | py3-pip | Fixed (26.2-r0) |