# CVE-2026-34165: golang-github-go-git-go-git: go-git is an extensible git implementation library written in pure Go

CVE-2026-34165 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2026-34165, released March 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-34165
- Priority: Routine
- CVSS: 5.0 (medium)
- EPSS: 0.0015
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 31, 2026

## Description

go-git is an extensible git implementation library written in pure Go. From version 5.0.0 to before version 5.17.1, a vulnerability has been identified in which a maliciously crafted .idx file can cause asymmetric memory consumption, potentially exhausting available memory and resulting in a denial-of-service (DoS) condition. Exploitation requires write access to the local repository's .git directory, it order to create or alter existing .idx files. This issue has been patched in version 5.17.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | forgejo-runner Fedora 43 | 12.7.3-2.fc43 | [FEDORA-2026-CF660BC96A](https://patchblox.com/security/data/fix/linux/fedora-2026-cf660bc96a.md) | Apr 27, 2026 |
| Linux | forgejo-runner-debuginfo Fedora 43 | 12.7.3-2.fc43 | [FEDORA-2026-CF660BC96A](https://patchblox.com/security/data/fix/linux/fedora-2026-cf660bc96a.md) | Apr 27, 2026 |
| Linux | forgejo-runner-debugsource Fedora 43 | 12.7.3-2.fc43 | [FEDORA-2026-CF660BC96A](https://patchblox.com/security/data/fix/linux/fedora-2026-cf660bc96a.md) | Apr 27, 2026 |
| Linux | golang-github-go-git-go-git Debian 14 | 5.17.1-1 | [DEBIAN-CVE-2026-34165](https://patchblox.com/security/data/fix/linux/debian-cve-2026-34165.md) | Mar 31, 2026 |
| Linux | govulncheck-vulndb opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | [OPENSUSE-SU-2026:21483-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21483-1.md) | Jul 30, 2026 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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