{"id":"CVE-2026-81531","state":"PUBLISHED","title":"Unauthenticated Account Information Disclosure in Multiple Omada Controllers","description":"An information\ndisclosure vulnerability has been identified in Omada Controller.  An API endpoint intended for Controller initialization\nremains accessible after completion and may disclose account-related\ninformation to unauthenticated remote users. \n\n\n\n\n\n\nSuccessful\nexploitation may allow an attacker to remote query the affected endpoint that\nmay facilitate user enumeration and subsequent attacks targeting administrative\naccounts.","publishedAt":"2026-09-08T16:53:18.786Z","updatedAt":"2026-09-21T18:01:46.384Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","source":"TPLink"},"assigner":"TPLink","products":["TP-Link System Inc. Omada Software Controller","TP-Link Systems Inc. OC200 V1","TP Link Systems Inc. OC200 v2","TP-Link Systems Inc OC200 v3","TP-Link Systems Inc. OC220 v1","TP-Link Systems Inc OC220 v2","TP-Link Systems Inc. OC300 v1","TP-Link Systems Inc. OC400 v1"],"affected":[{"vendor":"TP-Link System Inc.","product":"Omada Software Controller","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"6.3.0.45","versionType":"custom"}],"platforms":["Windows","Linux"]},{"vendor":"TP-Link Systems Inc.","product":"OC200 V1","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"(UN)_V1_1.42.10 Build 20260825","versionType":"custom"}]},{"vendor":"TP Link Systems Inc.","product":"OC200 v2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"(UN)_V2_2.27.10 Build 20260825","versionType":"custom"}]},{"vendor":"TP-Link Systems Inc","product":"OC200 v3","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"(UN)_V3_3.4.10 Build 20260825","versionType":"custom"}]},{"vendor":"TP-Link Systems Inc.","product":"OC220 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20260825","versionType":"custom"}]}],"references":["https://support.omadanetworks.com/us/download/software/omada-controller/","https://support.omadanetworks.com/us/document/133567/","https://support.omadanetworks.com/en/download/software/omada-controller/"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/81xxx/CVE-2026-81531.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-81531","state":"PUBLISHED","datePublished":"2026-09-08T16:53:18.786Z","dateUpdated":"2026-09-21T18:01:46.384Z","assignerShortName":"TPLink","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","dateReserved":"2026-08-26T22:31:50.287Z"},"containers":{"cna":{"title":"Unauthenticated Account Information Disclosure in Multiple Omada Controllers","descriptions":[{"lang":"en","value":"An information\ndisclosure vulnerability has been identified in 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