{"id":"CVE-2026-66803","aliases":["EUVD-2026-51302","GHSA-ww36-75qc-rhmx"],"status":"published","title":"Azure Cosmos DB Remote Code Execution Vulnerability","description":"Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00901,"percentile":0.60001,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284"],"published":"2026-07-30T20:28:04Z","modified":"2026-11-10T22:41:01Z","products":[{"vendor":"microsoft","product":"azure cosmos db"},{"vendor":"microsoft","product":"azure_cosmos_db"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66803","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66803"},{"url":"https://github.com/advisories/GHSA-ww36-75qc-rhmx"}],"sources":{"cve":[{"id":"CVE-2026-66803","title":"Azure Cosmos DB Remote Code Execution Vulnerability","description":"Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-07-30T20:28:04.898Z","modified":"2026-11-10T22:41:01.051Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-284"],"updated_at":"2026-11-10T23:49:30.334266Z"}],"euvd":[{"id":"EUVD-2026-51302","description":"Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-07-30T20:28:04Z","modified":"2026-11-10T22:41:01Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-11T00:24:46.475072Z"}],"ghsa":[{"id":"GHSA-ww36-75qc-rhmx","title":"Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a...","description":"Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-07-30T21:31:51Z","modified":"2026-07-30T21:31:57Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:09:58.559851Z"}],"nvd":[{"id":"CVE-2026-66803","description":"Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-07-30T21:18:12.743Z","modified":"2026-10-23T22:10:00.16Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:12:33.955581Z"}]}}