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.

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Tue, 29 Sep 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Path Traversal via Symlink Following in allowedLocalRoots in MCP Toolbox for Databases
Weaknesses CWE-22
CWE-59
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published:

Updated: 2026-09-29T18:35:11.181Z

Reserved: 2026-09-28T18:43:08.600Z

Link: CVE-2026-102242

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-09-29T18:17:06.887

Modified: 2026-09-29T18:17:06.887

Link: CVE-2026-102242

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses