CVE-2026-78677

GitPython before 3.1.59 omits --separate-git-dir from unsafe_git_clone_options, allowing attackers to create arbitrary git directories outside the intended clone destination. Attackers can pass a separate_git_dir parameter to Repo.clone_from() or Repo.clone() to redirect repository metadata to an attacker-controlled filesystem path, enabling arbitrary directory creation and potential hook execution.

CVSS 4.0

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.7% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-08-25

Modified

2026-10-12

Record from

the NVD, synced 2026-10-19

Affected

• gitpython_project:gitpython

Packages (OSV)

References

• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-8mcc-hrx5-hvxc
• https://www.vulncheck.com/advisories/gitpython-before-path-traversal-via-separate-git-dir
• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-8mcc-hrx5-hvxc

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