{"id":"CVE-2026-85297","aliases":["EUVD-2026-109906","GHSA-cg86-fr78-hv98"],"status":"published","title":"Bucket Squatting in Cloud Run MCP leads to Service Account Takeover","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.\n\n\n\nUsers must upgrade to Cloud Run MCP version 1.11.0 or later.","severity":{"version":"4.0","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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00314,"percentile":0.24603,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-340"],"published":"2026-10-26T14:58:30Z","modified":"2026-11-04T02:30:25Z","products":[{"vendor":"google cloud","product":"cloud run mcp"}],"references":[{"url":"https://github.com/GoogleCloudPlatform/cloud-run-mcp/releases/tag/v1.11.0","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85297"},{"url":"https://github.com/advisories/GHSA-cg86-fr78-hv98"}],"sources":{"cve":[{"id":"CVE-2026-85297","title":"Bucket Squatting in Cloud Run MCP leads to Service Account Takeover","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.\n\n\n\nUsers must upgrade to Cloud Run MCP version 1.11.0 or later.","status":"published","published":"2026-10-26T14:58:30.464Z","modified":"2026-11-02T21:12:52.542Z","cvss":[{"version":"4.0","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","level":"high","assessor":"cna"}],"cwes":["CWE-340"],"updated_at":"2026-11-03T00:01:31.659497Z"}],"euvd":[{"id":"EUVD-2026-109906","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.\n\n\n\nUsers must upgrade to Cloud Run MCP version 1.11.0 or later.","status":"published","published":"2026-10-26T14:58:30Z","modified":"2026-11-02T21:12:52Z","cvss":[{"version":"4.0","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","level":"high"}],"updated_at":"2026-11-03T05:08:36.865312Z"}],"ghsa":[{"id":"GHSA-cg86-fr78-hv98","title":"Bucket Squatting in Google Cloud Run MCP versions prior to 1.11.0 on Google Cloud Platform allows...","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.\n\n\n\nUsers must upgrade to Cloud Run MCP version 1.11.0 or later.","status":"published","published":"2026-10-26T18:32:59Z","modified":"2026-10-26T18:33:03Z","cvss":[{"version":"4.0","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber","level":"high"}],"cwes":["CWE-340"],"updated_at":"2026-11-02T15:14:24.666824Z"}],"nvd":[{"id":"CVE-2026-85297","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.\n\n\n\nUsers must upgrade to Cloud Run MCP version 1.11.0 or later.","status":"published","published":"2026-10-26T16:17:23.09Z","modified":"2026-11-02T22:17:23.327Z","cvss":[{"version":"4.0","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber","level":"high","assessor":"secondary"}],"cwes":["CWE-340"],"updated_at":"2026-11-03T00:02:35.749072Z"}],"osv":[{"id":"CVE-2026-85297","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.\n\n\n\nUsers must upgrade to Cloud Run MCP version 1.11.0 or later.","status":"published","published":"2026-10-26T16:17:23.09Z","modified":"2026-11-04T02:30:25.125813645Z","cvss":[{"version":"4.0","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber","level":"high"}],"updated_at":"2026-11-04T02:55:01.518827Z"}]}}