Bug 2558276

Summary: CVE-2026-104843 uv: uv: Arbitrary code execution via malicious package extraction on Windows [fedora-all]
Product: [Fedora] Fedora Reporter: Vipul Nair <vinair>
Component: uvAssignee: Ben Beasley <code>
Status: CLOSED NOTABUG QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: code, mhroncok, python-packagers-sig, rust-sig
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["abda3346-d0a2-4968-9604-8cc92792f291"]}
Fixed In Version: Doc Type: ---
Doc Text:
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Clone Of: Environment:
Last Closed: 2026-10-21 14:21:10 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2173769, 2545243    

Description Vipul Nair 2026-10-21 12:53:30 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.
Comment 1 Ben Beasley 2026-10-21 14:21:10 UTC 
Fortunately, Fedora isn’t Windows.
Comment 2 Miro Hrončok 2026-10-21 14:23:16 UTC 
Also, we are on 0.12.19+