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Test your applicationsUpgrade GitPython to version 3.1.50 or higher.
GitPython is a python library used to interact with Git repositories
Affected versions of this package are vulnerable to Command Injection via the set_value function when the section parameter is not properly validated for newline characters. An attacker can execute arbitrary code by injecting malicious section headers into the .git/config file, which can redirect core.hooksPath to an attacker-controlled directory and trigger execution when a git hook runs.
Note: This vulnerability bypasses the patch for CVE-2026-42215.