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{
"dataType": "CVE_RECORD",
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"cveMetadata": {
"cveId": "CVE-2026-85297",
"assignerOrgId": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
"state": "PUBLISHED",
"assignerShortName": "GoogleCloud",
"dateReserved": "2026-09-03T16:38:16.479Z",
"datePublished": "2026-10-26T14:58:30.464Z",
"dateUpdated": "2026-11-02T21:12:52.542Z"
},
"containers": {
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"shortName": "GoogleCloud",
"dateUpdated": "2026-10-26T14:58:30.464Z"
},
"title": "Bucket Squatting in Cloud Run MCP leads to Service Account Takeover",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-340",
"description": "CWE-340 Generation of Predictable Numbers or Identifiers",
"type": "CWE"
}
]
}
],
"impacts": [
{
"capecId": "CAPEC-616",
"descriptions": [
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"lang": "en",
"value": "CAPEC-616 Establish Rogue Location"
}
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],
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"product": "Cloud Run MCP",
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"descriptions": [
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"lang": "en",
"value": "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.\n\n\n\nUsers must upgrade to Cloud Run MCP version 1.11.0 or later.",
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"url": "https://github.com/GoogleCloudPlatform/cloud-run-mcp/releases/tag/v1.11.0"
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"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
"userInteraction": "PASSIVE",
"vulnConfidentialityImpact": "HIGH",
"subConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "HIGH",
"subIntegrityImpact": "LOW",
"vulnAvailabilityImpact": "HIGH",
"subAvailabilityImpact": "LOW",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "AMBER",
"version": "4.0",
"baseSeverity": "HIGH",
"baseScore": 7.7,
"vectorString": "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"
}
}
],
"credits": [
{
"lang": "en",
"value": "lambdasawa (Tsubasa Irisawa)",
"type": "reporter"
}
],
"source": {
"discovery": "EXTERNAL"
},
"x_generator": {
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"solutions": [
{
"lang": "en",
"value": "Users must upgrade to Cloud Run MCP version 1.11.0 or later.",
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"metrics": [
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"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-11-02T21:12:44.146375Z",
"id": "CVE-2026-85297",
"options": [
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"Exploitation": "none"
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"role": "CISA Coordinator",
"version": "2.0.3"
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"title": "CISA ADP Vulnrichment",
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