CVE-2026-73620 GitPython before 3.1.57 Arbitrary File Overwrite and Read
Attackers can exploit unsafe option forwarding in GitPython to overwrite or read arbitrary files via crafted repository operations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-73620?
CVE-2026-73620 is a high-severity path traversal vulnerability in gitpython-developers GitPython, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-22
Which versions are affected by CVE-2026-73620?
3 open source packages ship an affected version, including gitpython and GitPython. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitpython PyPI | All versions | 3.1.57 |
gitpython PyPI | All versions | 3.1.57 |
GitPython PyPI | All versions | 3.1.57 |
Products include Gitpython Project Gitpython.
How do I fix CVE-2026-73620?
Upgrade gitpython to 3.1.57 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-73620 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73620 exists.
Other vulnerabilities in gitpython-developers GitPython
- CVE-2023-40267 GitPython vulnerable to remote code execution due to insufficient sanitization of input arguments
- CVE-2026-78676 GitPython before 3.1.59 Remote Code Execution via Config Injection
- CVE-2026-67324 GitPython 3.1.50 Authentication Bypass via Joined Short Options
- CVE-2026-42215 GitPython: Command injection via Git options bypass
- CVE-2026-87817 GitPython before 3.1.60 Remote Code Execution via Git Directory Impersonation
Sources
Also known as DEBIAN-CVE-2026-73620, ECHO-9cab-61a6-aebd, ECHO-de72-db5b-dfba, GHSA-3f7w-8rr8-f37f, GHSA-mhfq-f35q-x62m, MINI-57f8-3mmj-2q46 and 7 more.