CVE-2026-27735

Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). In mcp-server-git versions prior to 2026.1.14, the git_add tool did not validate that file paths provided in the files argument were within the repository boundaries. Because the tool used GitPython's repo.index.add() rather than the Git CLI, relative paths containing `../` sequences that resolve outside the repository were accepted and staged into the Git index. Users are advised to upgrade to 2026.1.14 or newer to remediate this issue.

CVSS

No CVSS.

References

Link	Resource
https://github.com/modelcontextprotocol/servers/pull/3164
https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-vjqx-cfc4-9h6v

Configurations

No configuration.

History

27 Feb 2026, 14:06

Type	Values Removed	Values Added
Summary		(es) Servidores de Protocolo de Contexto de Modelo es una colección de implementaciones de referencia para el protocolo de contexto de modelo (MCP). En versiones de mcp-server-git anteriores a 2026.1.14, la herramienta git_add no validaba que las rutas de archivo proporcionadas en el argumento files estuvieran dentro de los límites del repositorio. Debido a que la herramienta utilizaba repo.index.add() de GitPython en lugar de la CLI de Git, las rutas relativas que contenían secuencias '../' que se resolvían fuera del repositorio eran aceptadas y preparadas en el índice de Git. Se aconseja a los usuarios que actualicen a la versión 2026.1.14 o posterior para solucionar este problema.

26 Feb 2026, 00:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-26 00:16

Updated : 2026-02-27 14:06

NVD link : CVE-2026-27735

Mitre link : CVE-2026-27735

CVE.ORG link : CVE-2026-27735

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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