go-git: Worktree operations may follow symlinks

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-71556
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-07 17:17:10 UTC
Updated2026-08-07 17:17:10 UTC
Descriptiongo-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, worktree operations (including checkout, status, and add) resolve symbolic links inside the working tree without confining resolution to the worktree boundary, so a maliciously crafted repository containing a symlink can cause go-git to read from or write to files outside the intended working directory when the repository is cloned and its worktree operations are used. Versions 5.19.2 and 6.0.0-alpha.5.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

EPSS: 0.002920000 probability, percentile 0.214590000 (date 2026-08-08)

Problem Types: CWE-59 | CWE-59 CWE-59: Improper Link Resolution Before File Access ('Link Following')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
3.1CNADECLARED7.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Go-git Go-git affected < 5.19.2 Not specified
CNA Go-git Go-git affected >= 6.0.0-alpha.1, < 6.0.0-alpha.5 Not specified

References

ReferenceSourceLinkTags
github.com/go-git/go-git/releases/tag/v5.19.2 [email protected] github.com
github.com/go-git/go-git/security/advisories/GHSA-hc8v-wwc9-vgxm [email protected] github.com
github.com/go-git/go-git/commit/661d1c7f101d34e002a3cfcf8dbea5b7421d07ac [email protected] github.com
github.com/go-git/go-git/commit/008a78f2dd86f52544ddff8b8e8ddeecdf3f7aab [email protected] github.com
github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5 [email protected] github.com
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