GHSA-x2qx-6953-8485: gitpython (CVE-2026-42284)

Package	Ecosystem	Affected	Fixed in
gitpython	PyPI	<3.1.47	3.1.47

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GitPython versions before 3.1.47 are vulnerable. The unsafe-option check for multi_options runs on the original list before shlex.split is applied, so a single string beginning with an allowed option can smuggle in a --config setting that git then applies, such as one pointing core.hooksPath at attacker-controlled hooks. An attacker who can supply input to multi_options in clone_from(), clone(), or Submodule.update() can run code during the clone. Upgrade to GitPython 3.1.47 or later. The source gives no workaround beyond not passing untrusted input to multi_options.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.1	High	3.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0057, the 47th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

7 May 2026, 19:16 UTC Confirmed by NVD
31 Oct 2026, 14:11 UTC First seen by agentprime
31 Oct 2026, 14:11 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.