Bug 2482228 (CVE-2026-45571)

Summary: CVE-2026-45571 github.com/go-git/go-git: go-git: Path validation flaw allows unauthorized file access
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in go-git, a Git implementation library. This path validation vulnerability allows an attacker to use specially crafted repository data. This data can cause go-git to modify or access files outside of the intended repository checkout, including critical `.git` directory files, potentially leading to unauthorized changes or information disclosure.
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Bug Depends On: 2498444    
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Description OSIDB Bzimport 2026-05-27 16:03:15 UTC 
go-git is an extensible git implementation library written in pure Go. Prior to 5.19.1 and 6.0.0-alpha.4, a path validation issue in go-git could allow crafted repository data to affect files outside the intended checkout target, including the repository's .git directory. These validations were introduced in upstream Git years ago, so the vulnerability arose from go-git drifting from those checks. This vulnerability is fixed in 5.19.1 and 6.0.0-alpha.4.