Vulnerability · Published Aug 13, 2026 · Assigned by VulnCheck
CVE-2026-73620GitPython before 3.1.57 Arbitrary File Overwrite and Read
High 8.1
In plain English
A high-severity path traversal in GitPython from gitpython-developers. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.6%top 52.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | python-git | 3.1.30-1+deb12u3 | DEBIAN-CVE-2026-73620 |
| Debian:13 | python-git | 3.1.44-1+deb13u1 | DEBIAN-CVE-2026-73620 |
| Debian:14 | python-git | 3.1.61-1 | DEBIAN-CVE-2026-73620 |
| PyPI | gitpython | 3.1.57 | GHSA-3f7w-8rr8-f37f |
| PyPI | gitpython | 3.1.57 | PYSEC-2026-3949 |
| Ubuntu:26.10 | python-git | no fix listed | UBUNTU-CVE-2026-73620 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| gitpython-developers | GitPython | 0 – before 3.1.57 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
References
- GitHub Security Advisory (GHSA-3f7w-8rr8-f37f) vendor-advisory
- VulnCheck Advisory: GitPython before 3.1.57 Arbitrary File Overwrite and Read third-party-advisory