CVE-2026-85297

Bucket Squatting in Cloud Run MCP leads to Service Account Takeover

Published Oct 26, 2026 CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed
Description
Bucket Squatting in Google Cloud Run MCP versions prior to 1.11.0 on Google Cloud Platform allows an attacker to intercept and access proprietary source code, execute arbitrary code and exfiltrate data.



Users must upgrade to Cloud Run MCP version 1.11.0 or later.

Remediation

Vendor Solution

Users must upgrade to Cloud Run MCP version 1.11.0 or later.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Google Cloud
Google Cloud cloud Run Mcp
Vendors & Products Google Cloud
Google Cloud cloud Run Mcp
Type Values Removed Values Added
Description Bucket Squatting in Google Cloud Run MCP versions prior to 1.11.0 on Google Cloud Platform allows an attacker to intercept and access proprietary source code, execute arbitrary code and exfiltrate data. Users must upgrade to Cloud Run MCP version 1.11.0 or later.
Title Bucket Squatting in Cloud Run MCP leads to Service Account Takeover
Weaknesses CWE-340
References
Metrics cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Amber'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GoogleCloud
Published
Updated
Nov 2, 2026, 9:12 PM
Reserved
Sep 3, 2026, 4:38 PM
Status
Awaiting Analysis
Published
Oct 26, 2026, 4:17 PM
Modified
Nov 2, 2026, 10:17 PM