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PYSEC-2026-3949

Quick fix

PYSEC-2026-3949 — gitpython: upgrade to the fixed version with the command below.

pip install --upgrade 'gitpython>=3.1.57'

Details

GitPython before 3.1.57 fails to guard git option forwarding in IndexFile.checkout() and TagReference.create(), allowing attackers to pass unsafe options via kwargs. Attackers can use --prefix to overwrite arbitrary files with repository content or -F to read arbitrary files returned in-band.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/gitpython

Introduced in: 0Fixed in: 3.1.57

Fixpip install --upgrade 'gitpython>=3.1.57'

References

https://www.vulncheck.com/advisories/gitpython-before-arbitrary-file-overwrite-and-read[ADVISORY]
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-3f7w-8rr8-f37f[EVIDENCE]