CVE-2026-78676

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-284h-m62q-gf8w	Exploit Vendor Advisory Mitigation
https://www.vulncheck.com/advisories/gitpython-before-remote-code-execution-via-config-injection	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*

History

12 Oct 2026, 15:10

Type	Values Removed	Values Added
Summary		(es) GitPython anterior a 3.1.59 no logra volver a serializar de forma segura los valores de git-config de varias líneas durante las operaciones de escritura, corrompiendo los valores citados inactivos en directivas inyectadas como core.hooksPath. Los atacantes pueden crear archivos de configuración con saltos de línea incrustados que se convierten en directivas git activas después de cualquier escritura de configuración de GitPython no relacionada, lo que permite la ejecución de código arbitrario mediante la invocación de un hook.

Information

Published : 2026-08-25 02:16

Updated : 2026-10-12 15:10

NVD link : CVE-2026-78676

Mitre link : CVE-2026-78676

CVE.ORG link : CVE-2026-78676

JSON object : View

Products Affected

gitpython_project

gitpython

CWE

CWE-88

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

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