CVE-2026-93328 Google Cloud MCP Toolbox for Databases - Path Traversal & Broken Access Control

Google Cloud MCP Toolbox for Databases 1.2.0 through 1.4.0 contains a path traversal and missing authorization vulnerability caused by crafted tool invocation parameters in cloud-storage source, letting unauthenticated remote attackers exfiltrate host files and overwrite arbitrary local files.

CVSS base score 9.3 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Read, File System Write, Information Disclosure
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber
Published
26 October 2026
Updated
27 October 2026
Weakness
CWE-22

Vendor fix

Update to the latest version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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