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Vulnerability record · CVE-2026-87817 · published 9 September 2026

CVE-2026-87817: Gitpython project gitpython code injection vulnerability

Gitpython Project · Gitpython

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.

8.7 CVSS 4.0 High EPSS 0.40% · top 67.9% CWE-94 · Code injection
8.7CVSS 4.0 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
16 Sep 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-239g-whfq-7xj9 ExploitMitigationVendor Advisory
https://www.vulncheck.com/advisories/gitpython-before-3.1.60-remote-code-execution-via-git-directory-impersonation Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-87817), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.