go-git: Malicious reference names may modify files outside the reference storage

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-71557
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-07 17:17:10 UTC
Updated2026-08-07 18:17:24 UTC
Descriptiongo-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, reference names are not sanitized before being used to construct on-disk paths under the reference storage directory, so a maliciously crafted reference name (for example containing directory-traversal sequences) can cause go-git to write files outside the intended reference storage directory. Versions 5.19.2 and 6.0.0-alpha.5 fix the issue.

Risk And Classification

Primary CVSS: v3.1 6.3 MEDIUM from [email protected]

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

EPSS: 0.003490000 probability, percentile 0.276350000 (date 2026-08-09)

Problem Types: CWE-22 | CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L
3.1CNADECLARED6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:N/AC:L/PR:L/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-qgq7-7hm3-q39j [email protected] github.com
github.com/go-git/go-git/pull/2247 [email protected] github.com
github.com/go-git/go-git/commit/4a0e66d555de5f9a30c31e2df64f445f42bd01e7 [email protected] github.com
github.com/go-git/go-git/commit/da9f7d8a0e98b475600177348d6ece384a370f36 [email protected] github.com
github.com/go-git/go-git/pull/2254 [email protected] github.com
github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report