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CVE-2026-85297— Bucket Squatting in Cloud Run MCP leads to Service Account Takeover

Quick assessment

Affected
Google Cloud Cloud Run MCP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Google Cloud Platform 上，Google Cloud Run MCP 1.11.0 之前的版本存在“存储桶抢占”（Bucket Squatting）漏洞，攻击者可借此拦截并访问专有源代码、执行任意代码以及窃取数据。 用户必须将 Cloud Run MCP 升级至 1.11.0 或更高版本。

CVSS 7.7 · High EPSS 0.31% · P24

Affected Version Matrix 1

VendorProduct Version RangeStatus
Google Cloud Cloud Run MCP < 1.11.0 affected
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I. Basic Information for CVE-2026-85297

Vulnerability Information
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Vulnerability Title
Bucket Squatting in Cloud Run MCP leads to Service Account Takeover
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
可预测问题
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Google Cloud Cloud Run MCP 0 ~ 1.11.0 -

II. Public POCs for CVE-2026-85297

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III. Intelligence Information for CVE-2026-85297

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IV. Related Vulnerabilities

Same vendor: Google Cloud
Same weakness: CWE-340