go-git is a highly extensible git implementation library written in pure Go. Prior to 5.16.5, a vulnerability was discovered in go-git whereby data integrity values for .pack and .idx files were not properly verified. This resulted in go-git potentially consuming corrupted files, which would likely result in unexpected errors such as object not found. For context, clients fetch packfiles from upstream Git servers. Those files contain a checksum of their contents, so that clients can perform integrity checks before consuming it. The pack indexes (.idx) are generated locally by go-git, or the git cli, when new .pack files are received and processed. The integrity checks for both files were not being verified correctly. This vulnerability is fixed in 5.16.5.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00005.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
go-git go-git affected
Version Status Constraints
< 5.16.5 affected —

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Go-git Subscribe
Go-git Subscribe

Project Subscriptions

Vendors Products
Go-git Subscribe
Go-git Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-37cx-329c-33x3 go-git improperly verifies data integrity values for .idx and .pack files
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/go-git/go-git/releases/tag/v5.16.5 cve-icon cve-icon
https://github.com/go-git/go-git/security/advisories/GHSA-37cx-329c-33x3 cve-icon cve-icon
History

Tue, 10 Feb 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Go-git
Go-git go-git
Vendors & Products Go-git
Go-git go-git

Mon, 09 Feb 2026 22:30:00 +0000

Type Values Removed Values Added
Description go-git is a highly extensible git implementation library written in pure Go. Prior to 5.16.5, a vulnerability was discovered in go-git whereby data integrity values for .pack and .idx files were not properly verified. This resulted in go-git potentially consuming corrupted files, which would likely result in unexpected errors such as object not found. For context, clients fetch packfiles from upstream Git servers. Those files contain a checksum of their contents, so that clients can perform integrity checks before consuming it. The pack indexes (.idx) are generated locally by go-git, or the git cli, when new .pack files are received and processed. The integrity checks for both files were not being verified correctly. This vulnerability is fixed in 5.16.5.
Title go-git improperly verifies data integrity values for .idx and .pack files
Weaknesses CWE-354
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-09T22:13:41.974Z

Reserved: 2026-02-09T16:22:17.786Z

Link: CVE-2026-25934

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-09T23:16:05.937

Modified: 2026-02-10T15:22:54.740

Link: CVE-2026-25934

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-10T11:34:54Z

Weaknesses