medium5.9
CVE-2026-104843
uv is a Python package and project manager written in Rust.
Impact
uv is a Python package and project manager written in Rust. From 0.12.7 until 0.12.18, uv wheel extraction on Windows can process a malicious wheel in a way that writes a file outside the installation prefix, including an executable in a directory already present on the user's PATH. Non-Windows hosts are not affected. This issue is fixed in version 0.12.18.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | uv | >= 0.12.7, < 0.12.18 | 0.12.18 |
| rust | uv | >= 0.12.7, < 0.12.18 | 0.12.18 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-2cv4-cqwr-gwf7
- https://github.com/astral-sh/uv/security/advisories/GHSA-2cv4-cqwr-gwf7
- https://nvd.nist.gov/vuln/detail/CVE-2026-104843
- https://github.com/astral-sh/uv/pull/21923
- https://github.com/astral-sh/uv/commit/67169645278ce082638d619beefa6d062540843b
- https://github.com/astral-sh/uv/releases/tag/0.12.18