# CVE-2026-78676

## Summary

- **CVE ID:** CVE-2026-78676
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-88
- **Published:** Aug 25, 2026
- **Last Modified:** Aug 26, 2026

## 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.

## Affected Products

- gitpython-developers — GitPython (0)
- gitpython-developers — GitPython (3.1.59)

## References

- [CNA](https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-284h-m62q-gf8w)
- [CNA](https://www.vulncheck.com/advisories/gitpython-before-remote-code-execution-via-config-injection)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.43%
- **EPSS Percentile:** 35.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._