CVE-2026-78676 GitPython before 3.1.59 Remote Code Execution via Config Injection
Attackers can inject git directives via crafted config files, leading to arbitrary code execution through hook invocation in GitPython.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-78676?
CVE-2026-78676 is a critical code injection vulnerability in gitpython-developers GitPython, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
GitPython before 3.1.59 fails to safely re-serialize multi-line git-config values during write operations, corrupting dormant quoted values into injected directives like core.hooksPath. Attackers can craft config files with embedded newlines that become live git directives after any unrelated GitPython config write, enabling arbitrary code execution via hook invocation.
Weakness: CWE-88
Which versions are affected by CVE-2026-78676?
3 open source packages ship an affected version, including gitpython and GitPython. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitpython PyPI | All versions | 3.1.59 |
gitpython PyPI | All versions | 3.1.59 |
GitPython PyPI | All versions | 3.1.59 |
Products include Gitpython Project Gitpython.
How do I fix CVE-2026-78676?
Upgrade gitpython to 3.1.59 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-78676 being exploited?
There is no known exploitation of CVE-2026-78676 in the wild and no public exploit code.
Other vulnerabilities in gitpython-developers GitPython
- CVE-2023-40267 GitPython vulnerable to remote code execution due to insufficient sanitization of input arguments
- 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
- CVE-2026-87819 GitPython before 3.1.60 Denial of Service via ReDoS
Sources
Also known as DEBIAN-CVE-2026-78676, ECHO-4174-0632-ee48, GHSA-284h-m62q-gf8w, MINI-3r6g-gxcp-rx46, MINI-3r6x-qh36-cw9c, MINI-5grh-35gp-fmw2 and 3 more.