CVE-2026-73620

HighCVSS 8.1/10Last modified Oct 24, 2026

Description

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.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-22

Affected software

Vendor	Product	Versions
gitpython-developers	GitPython	< 3.1.57

References

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-3f7w-8rr8-f37fExploit, Vendor Advisory
https://www.vulncheck.com/advisories/gitpython-before-arbitrary-file-overwrite-and-readThird Party Advisory

Timeline

Published: Aug 13, 2026
Last modified: Oct 24, 2026
NVD status: Analyzed

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