CVE-2026-73623

GitPython before 3.1.54 contains an incomplete denylist in unsafe_git_clone_options that omits --template, allowing attackers to achieve arbitrary command execution during clone operations. Attackers can supply --template pointing to a directory containing malicious post-checkout hooks that execute when git clones the repository.

CVSS 4.0

7.7CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-25)

CWE

CWE-78

Published

2026-08-13

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• gitpython_project:gitpython

Packages (OSV)

References

• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-6p8h-3wgx-97gf
• https://www.vulncheck.com/advisories/gitpython-before-remote-code-execution-via-template
• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-6p8h-3wgx-97gf

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