Bug 2387190 (CVE-2025-54368)

Summary: CVE-2025-54368 uv: uv ZIP Archive Validation Vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in uv. The package's handling of remote ZIP archives processes entries sequentially without verifying them against the archive's central directory. This vulnerability allows a remote attacker to craft a malicious ZIP archive that can cause unexpected behavior when processed.
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Bug Depends On: 2387241, 2387242, 2387243    
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Description OSIDB Bzimport 2025-08-08 01:01:36 UTC 
uv is a Python package and project manager written in Rust. In versions 0.8.5 and earlier, remote ZIP archives were handled in a streamwise fashion, and file entries were not reconciled against the archive's central directory. An attacker could contrive a ZIP archive that would extract with legitimate contents on some package installers, and malicious contents on others due to multiple local file entries. An attacker could  also contrive a "stacked" ZIP input with multiple internal ZIPs, which would be handled differently by different package installers. The attacker could choose which installer to target in both scenarios. This issue is fixed in version 0.8.6. To work around this issue, users may choose to set UV_INSECURE_NO_ZIP_VALIDATION=1 to revert to the previous behavior.