CVE-2026-27735

The record

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.

Affected packages

Related vulnerabilities

• GHSA-vjqx-cfc4-9h6v mcp-server-git : Path traversal in git_add allows staging files outside repository… Same vulnerability
• CVE-2025-68143 Model Context Protocol Servers is a collection of reference implementations for the model… Also affects mcp-server-git
• CVE-2025-68145 In mcp-server-git versions prior to 2025.12.17, when the server is started with the… Also affects mcp-server-git
• CVE-2025-68144 In mcp-server-git versions prior to 2025.12.17, the git_diff and git_checkout functions… Also affects mcp-server-git
• GHSA-5cgr-j3jf-jw3v mcp-server-git's unrestricted git_init tool allows repository creation at arbitrary… Also affects mcp-server-git
• CVE-2026-81163 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')… CWE-22
• CVE-2026-112049 Vita3K before build 4187 contains a path traversal (zip slip) vulnerability in… CWE-22
• CVE-2026-112005 WhoDB 0.104.0 before 0.135.0 contains a path traversal vulnerability that allows remote… CWE-22