CVE-2026-78678

Description

GitPython versions before 3.1.59 contain an incomplete denylist in the unsafe_git_revision_options guard that omits --contents and -S options, allowing attackers to read arbitrary files by passing these options to Repo.blame(). Attackers can supply revision values like --contents=/etc/passwd to leak file contents through the blame result returned to the caller.

CVSS Vector

References

• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-5xxx-qhh7-9287
• https://www.vulncheck.com/advisories/gitpython-before-arbitrary-file-read-via-repo-blame
• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-5xxx-qhh7-9287