# CVE-2026-87817: python-git: GitPython before 3.1.60 fails to properly validate the git directory location, allowing attackers to impersonate the...

CVE-2026-87817 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-87817, released September 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-87817
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0042
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 9, 2026

## Description

GitPython before 3.1.60 fails to properly validate the git directory location, allowing attackers to impersonate the git directory using tracked files like gitdir, commondir, and HEAD. Attackers can execute arbitrary code by placing a malicious pre-commit hook in the tracked hooks directory that executes when a victim calls index.commit() on a cloned or opened repository.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-GitPython opensuse-leap 16.0 | 3.1.44-160000.4.1 | [OPENSUSE-SU-2026:21874-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21874-1.md) | Sep 18, 2026 |
| Linux | python-GitPython sles 15.6 | 3.1.34.1693646983.2a2ae77-150400.9.11.1 | [SUSE-SU-2026:4191-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4191-1.md) | Sep 15, 2026 |
| Linux | python-GitPython sles 15.7 | 3.1.34.1693646983.2a2ae77-150400.9.11.1 | [SUSE-SU-2026:4191-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4191-1.md) | Sep 15, 2026 |
| Linux | python-git Debian 12.15 (bookworm) | 3.1.30-1+deb12u3 | [DEBIAN-CVE-2026-87817](https://patchblox.com/security/data/fix/linux/debian-cve-2026-87817.md) | Sep 10, 2026 |
| Linux | python-git Debian 13.5 (trixie) | 3.1.44-1+deb13u1 | [DEBIAN-CVE-2026-87817](https://patchblox.com/security/data/fix/linux/debian-cve-2026-87817.md) | Sep 10, 2026 |
| Linux | python-git Debian 14 | 3.1.61-1 | [DEBIAN-CVE-2026-87817](https://patchblox.com/security/data/fix/linux/debian-cve-2026-87817.md) | Sep 10, 2026 |

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Data as of 2026-11-09T19:38:12Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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