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CVE-2026-87817

8.8 · HIGH

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.

Published Sep 9, 2026gitpython_projectCWE-94EPSS 0.42%

Overview

CVE-2026-87817 is a high-severity vulnerability affecting gitpython_project gitpython. It was published on September 9, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from gitpython_project. Update gitpython to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
gitpython_projectgitpython>= 0, < 3.1.60Affected

References

GitHubgithub.com/gitpython-developers/GitPython/security/advisories/GHSA-239g-whfq-7xj9Refwww.vulncheck.com/advisories/gitpython-before-3.1.60-remote-code-execution-via-git-directory-impersonation

How CyberStrike helps

Frequently asked questions

What is CVE-2026-87817?

CVE-2026-87817 is a high-severity vulnerability affecting gitpython_project gitpython. It was published on September 9, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-87817?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-87817?

Check the references section for vendor advisories and patches from gitpython_project. Update gitpython to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-87817?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-87817 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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