CVE-2026-104843
Medium
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.
SeverityMedium
CVSS5.9
Exploit probability—
ProductUv
PublishedOct 2, 2026
First seenOct 2, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- uv0.12.18 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| uvPyPI | 0.12.7 ≤ v < 0.12.18 | 0.12.18 |
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