Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://github.com/astral-sh/uv/commit/67169645278ce082638d619beefa6d062540843b
- https://github.com/astral-sh/uv/pull/21923
- https://github.com/astral-sh/uv/releases/tag/0.12.18
- https://github.com/astral-sh/uv/security/advisories/GHSA-2cv4-cqwr-gwf7
FAQ
What is CVE-2026-104843?
CVE-2026-104843 is a documented vulnerability. 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...
How severe is CVE-2026-104843?
CVSS scoring is not yet available for CVE-2026-104843. Check NVD for updates.
Is there a patch for CVE-2026-104843?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.