Google Cloud MCP Toolbox 1.2.01.4.0 Path Travesal & Missing Auth cloud src
CVE-2026-93328 Published on October 26, 2026

Missing Authorization in MCP Toolbox for Databases allows Arbitrary File Read and Write
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.

NVD

Vulnerability Analysis

CVE-2026-93328 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE

Weakness Types

What is an AuthZ Vulnerability?

The software does not perform an authorization check when an actor attempts to access a resource or perform an action.

CVE-2026-93328 has been classified to as an AuthZ vulnerability or weakness.

What is a Directory traversal Vulnerability?

The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

CVE-2026-93328 has been classified to as a Directory traversal vulnerability or weakness.


Affected Versions

Google Cloud MCP Toolbox for Databases (googleapis/mcp-toolbox):