CVE-2026-42284

Publication date 7 May 2026

Last updated 27 May 2026

Ubuntu priority

Cvss 3 Severity Score

Description

GitPython is a python library used to interact with Git repositories. Prior to version 3.1.47, _clone() validates multi_options as the original list, then executes shlex.split(" ".join(multi_options)). A string like "--branch main --config core.hooksPath=/x" passes validation (starts with --branch), but after split becomes ["--branch", "main", "--config", "core.hooksPath=/x"]. Git applies the config and executes attacker hooks during clone. This issue has been patched in version 3.1.47.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
python-git	26.04 LTS resolute	Fixed 3.1.46-1ubuntu0.1~esm1
	25.10 questing	Vulnerable
	24.04 LTS noble	Fixed 3.1.37-3ubuntu0.1~esm2
	22.04 LTS jammy	Fixed 3.1.24-1ubuntu0.1~esm3
	20.04 LTS focal	Fixed 3.0.7-1ubuntu0.1~esm4
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Ignored end of ESM support, was needs-triage
	14.04 LTS trusty	Not affected

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
python-git	Upstream: da54523

Severity score breakdown

Parameter	Value
Base score	8.1 · High
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-8303-1
GitPython vulnerabilities
26 May 2026