SB2026050640 - Fedora 44 update for GitPython

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Main Vulnerability Database SB2026050640

SB2026050640 - Fedora 44 update for GitPython

Published: May 6, 2026

Security Bulletin ID SB2026050640
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) OS Command Injection (CVE-ID: CVE-2026-42215)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to command injection in Repo.clone_from(), Remote.fetch(), Remote.pull(), and Remote.push() when processing attacker-controlled kwargs that are normalized into unsafe Git options. A remote user can supply crafted upload_pack or receive_pack values to execute arbitrary code.

The issue occurs because underscore-form kwargs bypass the unsafe-option check before being converted into dangerous command-line flags, and it does not require a malicious repository.


Remediation

Install update from vendor's website.

References