MediumFix available
golang-github-go-git-go-git — security advisory
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.
- Products
- golang-github-go-git-go-git
- Affected versions
- 5.14.0-1, 5.16.2-1, 5.16.2-1ubuntu0.1~esm1, 5.19.1-1, 5.19.2-1, 5.4.2-3, 5.4.2-3build1, 5.4.2-4, 5.4.2-4ubuntu0.24.04.1, 5.4.2-4ubuntu0.24.04.2, 5.4.2-4ubuntu0.24.04.2+esm1, 5.4.2-4ubuntu0.24.04.3, 5.4.2-4ubuntu0.24.04.3+esm1
- Fixed versions
- 5.4.2-3ubuntu0.1~esm1, 5.4.2-4ubuntu0.24.04.3+esm2
- CVEs
- CVE-2026-25934
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:56 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-25934
golang-github-go-git-go-git
Fixed versions: 5.4.2-3ubuntu0.1~esm1
golang-github-go-git-go-git
Fixed versions: 5.4.2-4ubuntu0.24.04.3+esm2
golang-github-go-git-go-git
Fixed versions: Not specified
golang-github-go-git-go-git
Fixed versions: Not specified
golang-github-go-git-go-git
Fixed versions: Not specified
Complete source record
{
"id": "0208af852f45d6719e11c98a0f33fcab982305f2c7176adc9320d0b4200bc5cd",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-25934",
"method": "structured",
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"summary": "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.",
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"5.4.2-4ubuntu0.24.04.3",
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"modified": "2026-10-17T12:56:18.150407960Z",
"provider": "osv",
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"references": [
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"https://www.cve.org/CVERecord?id=CVE-2026-25934",
"https://github.com/go-git/go-git/releases/tag/v5.16.5",
"https://github.com/go-git/go-git/security/advisories/GHSA-37cx-329c-33x3",
"https://ubuntu.com/security/notices/USN-8088-1"
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"source_id": "core-osv",
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"published_at": "2026-02-09T23:16:00+00:00"
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