All vulnerabilities
CVE-2026-102242

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

Google MCP Toolbox for Databases
Open in ThreatlineRecord JSON
CVSS
8.6High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.37%Chance of exploitation activity in the next 30 days, higher than 29% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
Published29 Sep 2026Updated 29 Sep 2026CVE List

What fixes it

No source in this snapshot names a fixed version.

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.

Text from CVE List

Affected versions 1

  • MCP Toolbox for Databasesaffected: 1.2.0 through 1.9.0CVE List

References 1