CVE-2026-13346
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.6
- CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.29%
- CWE
- CWE-36
- Published
- 2026-07-29
- Last modified
- 2026-07-29
Affected products
- Python Packaging Authority pip
Weakness type
Related vulnerabilities
- CVE-2026-68896 — Microsoft Windows Search Component Elevation of Privilege Vulnerability
- CVE-2026-69612 — Windows Error Reporting Elevation of Privilege Vulnerability
- CVE-2026-47630 — NVIDIA Triton Inference Server for Linux contains a vulnerability where an attacker could cause an...
- CVE-2026-47606 — NVIDIA Triton Inference Server for Linux contains a vulnerability where an attacker could cause an...
- CVE-2026-46345 — compliance-trestle - jinja has an Arbitrary File Write via Path Traversal
- CVE-2026-47243 — Kata guest escape: runtime-rs guest-root to host-root escape via virtiofs
- CVE-2026-54202 — TeamDavid: Path Traversal in the archive creation functionality
- CVE-2026-61891 — In Eclipse Theia versions up to and including 1.73.1, the `@theia/filesystem` backend exposes HTTP...