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8.6 High

CVE-2026-102242 Improper link resolution (CWE-59 / CWE-22) in the allowedLocalRoots path validation in Google MCP Toolbox for…

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 and versions

Product Affected versions Fixed in
MCP Toolbox for Databases 1.2 1.2.0 → 1.9.0 No fix stated

References

Timeline

  1. Published
  2. Last modified

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