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: PyPI: uv, crates.io: uv
### Impact
In versions of uv from 0.12.7 to 0.12.18 on Windows, uv could be induced into writing a file outside of the installation prefix during wheel installation.
A malicious wheel could use this to place an executable outside of the intended environment, including in a directory already present on the user's PATH.
This vulnerability only affects Windows hosts; no other platforms are affected.
### Patches
uv 0.12.18 and newer address this vulnerability. Users are encouraged to upgrade to 0.12.18.
### Workarounds
There is no workaround other than upgrading to uv 0.12.18.
Affected: PyPI: uv
### Impact
In versions of uv from 0.12.7 to 0.12.18 on Windows, uv could be induced into writing a file outside of the installation prefix during wheel installation.
A malicious wheel could use this to place an executable outside of the intended environment, including in a directory already present on the user's PATH.
This vulnerability only affects Windows hosts; no other platforms are affected.
### Patches
uv 0.12.18 and newer address this vulnerability. Users are encouraged to upgrade to 0.12.18.
### Workarounds
There is no workaround other than upgrading to uv 0.12.18.
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Affected: Ubuntu:26.10: uv, Ubuntu:26.10: uv-full
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.