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3 vulnerabilities found for MCP Toolbox for Databases by Google
CVE-2026-102242 (GCVE-0-2026-102242)
Vulnerability from cvelistv5
Published
2026-09-29 17:47
Modified
2026-09-29 18:35
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| MCP Toolbox for Databases |
Version: 1.2.0 ≤ 1.9.0 |
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CVE-2026-11624 (GCVE-0-2026-11624)
Vulnerability from cvelistv5
Published
2026-06-13 08:38
Modified
2026-06-15 17:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-346 - Origin Validation Error
Summary
The Model Context Protocol has a security warning advising servers to validate the "Origin" header on all incoming connections to prevent DNS rebinding attacks. Prior to the v0.25.0 release, users had no way to validate the origin's host. In v0.25.0, a new "--allowed-hosts" flag was introduced alongside the existing "--allowed-origins" flag, enabling users to specify permitted hosts at server startup. Both flags default to "*", allowing users to implement strict access controls as needed without breaking existing setups. If either flag is set to "*", the server will output a startup warning about potential vulnerabilities. Documentation has also been updated to highlight these security considerations.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| MCP Toolbox for Databases |
Version: 0 ≤ |
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CVE-2026-9739 (GCVE-0-2026-9739)
Vulnerability from cvelistv5
Published
2026-05-27 21:38
Modified
2026-05-28 13:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-942 - Permissive Cross-domain Policy with Untrusted Domains
Summary
Vulnerable to DNS rebinding attacks when using SSE (http://b/499408790). During the beta phase, we implemented `allowed-origins` and `allowed-hosts` flags to align with MCP security guidelines. However, the hardcoded `Access-Control-Allow-Origin: *` header in the SSE initialization handler was inadvertently retained. This vulnerability specifically impacts users connecting via Toolbox using SSE under specification v2024-11-05.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| MCP Toolbox for Databases |
Version: 0 < PR 3054 (Fix CORS bypass) |
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