CVE-2026-93328

Path Traversal and Missing Authorization in cloud-storage source in Google Cloud MCP Toolbox for…

Risk score: 61/100
CVSS: 9.3 v4.0
Published: 26 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is: Path Traversal and Missing Authorization in cloud-storage source in Google Cloud MCP Toolbox for Databases (googleapis/mcp-toolbox) versions 1.2.0 through 1.4.0 allows an unauthenticated remote attacker to exfiltrate host files to external Google Cloud Storage buckets and overwrite arbitrary local files via crafted to…
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Amber

CVSS 9.3 critical
Remotely exploitable without logging in

References

https://github.com/googleapis/mcp-toolbox/pull/3454

Original description

Path Traversal and Missing Authorization in cloud-storage source in Google Cloud MCP Toolbox for Databases (googleapis/mcp-toolbox) versions 1.2.0 through 1.4.0 allows an unauthenticated remote attacker to exfiltrate host files to external Google Cloud Storage buckets and overwrite arbitrary local files via crafted tool invocation parameters.

Last activity 26 Oct 2026. Patch Forecast updates every hour.