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CVE PROGRAM SOURCE RECORD8.6 High

CVE-2026-102242

Path Traversal via Symlink Following in allowedLocalRoots in MCP Toolbox for Databases

Description

Improper link resolution (CWE-59 / CWE-22) in the allowedLocalRoots path validation in Google MCP Toolbox for Databases versions 1.2.0 through 1.9.0 allows a remote authenticated attacker with tool execution permissions to bypass directory boundary restrictions via symbolic links. Because path validation checks directories lexically without resolving symbolic links first, an attacker can access or overwrite arbitrary local files located outside the permitted root directories.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Google MCP Toolbox for Databases

Default version status: unaffected

  • 1.2.0 to ≤ 1.9.0affected

References