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Back to active CVEs
High · CVSS 7.7CVE-2026-85297

Bucket Squatting in Cloud Run MCP leads to Service Account TakeoverCVE-2026-85297

Answer in brief

CVE-2026-85297 records a High severity (CVSS 7.7) vulnerability in Bucket Squatting in Cloud Run MCP leads to Service Account Takeover. The current sources do not mark it as known exploited. The current feed maps Google Cloud/Cloud Run MCP (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 26, 2026Updated Oct 26, 2026Source checked Oct 26, 2026First seen by HOL Oct 26, 2026Material review Oct 26, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.7
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Google Cloud/Cloud Run MCP (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Google Cloud/Cloud Run MCPgeneric>=0 <1.11.01.11.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Google Cloud/Cloud Run MCP.
  2. 2Review the reported fix. Source-reported solution: Users must upgrade to Cloud Run MCP version 1.11.0 or later.

Evidence timeline and material changes

  1. Published upstream

    Oct 26, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 26, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 26, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Tool Poisoning
EPSS
Not reported
CWE IDs
CWE-340
Source
CVE List V5
Source checked
Oct 26, 2026
References
1 linked source
Open source record