{"id":"CVE-2026-82266","aliases":["EUVD-2026-67797","GHSA-qp5m-mrqw-6pxr"],"status":"published","title":"Redpanda Admin API Unauthenticated Superuser Access via Default Configuration","description":"Redpanda through 26.2.2 binds the Admin API to 0.0.0.0:9644 with admin_api_require_auth defaulting to false, treating unauthenticated requests as superusers. Attackers can reach port 9644 without credentials to create and delete broker accounts, modify cluster configuration, and disrupt partition replication.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00621,"percentile":0.50223,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2026-08-28T16:18:50Z","modified":"2026-10-28T02:31:00Z","products":[{"vendor":"redpanda-data","product":"redpanda"}],"references":[{"url":"https://github.com/redpanda-data/redpanda/issues/30989","tags":["issue-tracking","report"]},{"url":"https://github.com/redpanda-data/redpanda","tags":["product","package"]},{"url":"https://github.com/redpanda-data/redpanda/blob/3cfce474a872090e7c74d14181885f5838c54cf2/conf/redpanda.yaml","tags":["technical-description","article"]},{"url":"https://github.com/redpanda-data/redpanda/blob/3cfce474a872090e7c74d14181885f5838c54cf2/src/v/security/request_auth.cc","tags":["technical-description","article"]},{"url":"https://www.vulncheck.com/advisories/redpanda-admin-api-unauthenticated-superuser-access-via-default-configuration","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82266","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-qp5m-mrqw-6pxr"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82266.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-82266","title":"Redpanda Admin API Unauthenticated Superuser Access via Default Configuration","description":"Redpanda through 26.2.2 binds the Admin API to 0.0.0.0:9644 with admin_api_require_auth defaulting to false, treating unauthenticated requests as superusers. Attackers can reach port 9644 without credentials to create and delete broker accounts, modify cluster configuration, and disrupt partition replication.","status":"published","published":"2026-08-28T16:18:50.727Z","modified":"2026-09-24T14:19:57.668Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T13:40:35.004553Z"}],"euvd":[{"id":"EUVD-2026-67797","description":"Redpanda through 26.2.2 binds the Admin API to 0.0.0.0:9644 with admin_api_require_auth defaulting to false, treating unauthenticated requests as superusers. Attackers can reach port 9644 without credentials to create and delete broker accounts, modify cluster configuration, and disrupt partition replication.","status":"published","published":"2026-08-28T16:18:50Z","modified":"2026-09-24T14:19:57Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-02T17:27:57.839356Z"}],"ghsa":[{"id":"GHSA-qp5m-mrqw-6pxr","title":"Redpanda through 26.2.2 binds the Admin API to 0.0.0.0:9644 with admin_api_require_auth...","description":"Redpanda through 26.2.2 binds the Admin API to 0.0.0.0:9644 with admin_api_require_auth defaulting to false, treating unauthenticated requests as superusers. Attackers can reach port 9644 without credentials to create and delete broker accounts, modify cluster configuration, and disrupt partition replication.","status":"published","published":"2026-08-28T21:31:23Z","modified":"2026-08-28T21:31:23Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:X","level":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:11:08.095363Z"}],"nvd":[{"id":"CVE-2026-82266","description":"Redpanda through 26.2.2 binds the Admin API to 0.0.0.0:9644 with admin_api_require_auth defaulting to false, treating unauthenticated requests as superusers. Attackers can reach port 9644 without credentials to create and delete broker accounts, modify cluster configuration, and disrupt partition replication.","status":"published","published":"2026-08-28T20:20:17.213Z","modified":"2026-09-24T20:43:32.537Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:12:42.366888Z"}],"osv":[{"id":"CVE-2026-82266","title":"Redpanda Admin API Unauthenticated Superuser Access via Default Configuration","description":"Redpanda through 26.2.2 binds the Admin API to 0.0.0.0:9644 with admin_api_require_auth defaulting to false, treating unauthenticated requests as superusers. Attackers can reach port 9644 without credentials to create and delete broker accounts, modify cluster configuration, and disrupt partition replication.","status":"published","published":"2026-08-28T16:18:50.727Z","modified":"2026-10-28T02:31:00.493812176Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:45:18.131258Z"}]}}