{"id":"CVE-2026-32211","aliases":["EUVD-2026-18560","GHSA-5w7p-v6h9-q8c5"],"status":"published","title":"Azure MCP Server Information Disclosure Vulnerability","description":"Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0086,"percentile":0.58931,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2026-04-02T23:27:01Z","modified":"2026-10-15T15:53:51Z","products":[{"vendor":"microsoft","product":"azure web apps"},{"vendor":"microsoft","product":"azure_web_apps"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32211","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32211"},{"url":"https://github.com/advisories/GHSA-5w7p-v6h9-q8c5"}],"sources":{"cve":[{"id":"CVE-2026-32211","title":"Azure MCP Server Information Disclosure Vulnerability","description":"Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-04-02T23:27:01.785Z","modified":"2026-10-15T15:53:51.635Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:19:57.47301Z"}],"euvd":[{"id":"EUVD-2026-18560","description":"Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-04-02T23:27:01Z","modified":"2026-10-15T15:53:51Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T17:00:12.42385Z"}],"ghsa":[{"id":"GHSA-5w7p-v6h9-q8c5","title":"Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker...","description":"Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-04-03T00:31:09Z","modified":"2026-04-03T00:31:14Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:07:08.460272Z"}],"nvd":[{"id":"CVE-2026-32211","description":"Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-04-03T00:16:04.703Z","modified":"2026-07-24T21:10:00.143Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:12:12.73929Z"}]}}