CVE-2026-78677

GitPython before 3.1.59 Path Traversal via separate-git-dir

Description

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.

Scores

Weaknesses (CWE)

• CWE-22

Advisories

• GHSA-8mcc-hrx5-hvxc — GitPython: clone_from()/clone() omit --separate-git-dir from unsafe_git_clone_options, enabling arbitrary git-directory creation outside the destination
• PYSEC-2026-3787 — GitPython before 3.1.59 omits --separate-git-dir from unsafe_git_clone_options, allowing attackers to create arbitrary git directories outside the intended clon

European references

• ENISA EUVD · EUVD-2026-65223
• GCVE · GCVE-0-2026-78677

CERT-FR advisories

• CERTFR-2026-AVI-1336 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

• cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:* < 3.1.59

Affected products

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

Sources