{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-81531","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","state":"PUBLISHED","assignerShortName":"TPLink","dateReserved":"2026-08-26T22:31:50.287Z","datePublished":"2026-09-08T16:53:18.786Z","dateUpdated":"2026-09-08T17:21:54.913Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","shortName":"TPLink","dateUpdated":"2026-09-08T16:53:18.786Z"},"title":"Unauthenticated Account Information Disclosure in Multiple Omada Controllers","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-200","description":"CWE-200 Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-118","descriptions":[{"lang":"en","value":"CAPEC-118 Collect & Analyze Information"}]}],"affected":[{"vendor":"TP-Link System Inc.","product":"Omada Software Controller","platforms":["Windows","Linux"],"versions":[{"status":"affected","version":"0","lessThan":"6.3.0.44","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"OC200 V1","versions":[{"status":"affected","version":"0","lessThan":"(UN)_V1_1.42.10 Build 20260825","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP Link Systems Inc.","product":"OC200 v2","versions":[{"status":"affected","version":"0","lessThan":"(UN)_V2_2.27.10 Build 20260825","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc","product":"OC200 v3","versions":[{"status":"affected","version":"0","lessThan":"(UN)_V3_3.4.10 Build 20260825","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"OC220 v1","versions":[{"status":"affected","version":"0","lessThan":"(UN)_V1_1.7.10 Build 20260825","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc","product":"OC220 v2","versions":[{"status":"affected","version":"0","lessThan":"(UN)_V2_2.6.10 Build 20260825","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"OC300 v1","versions":[{"status":"affected","version":"0","lessThan":"(UN)_V1_1.36.10 Build 20260825","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"OC400 v1","versions":[{"status":"affected","version":"0","lessThan":"(UN)_V1_1.14.10 Build 20260825","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>An information\ndisclosure vulnerability has been identified in Omada Controller.&nbsp; An API endpoint intended for Controller initialization\nremains accessible after completion and may disclose account-related\ninformation to unauthenticated remote users.&nbsp;\n</p>\n\n<p>Successful\nexploitation may allow an attacker to remote query the affected endpoint that\nmay facilitate user enumeration and subsequent attacks targeting administrative\naccounts.</p>"}]}],"references":[{"url":"https://support.omadanetworks.com/us/download/software/omada-controller/","tags":["patch"]},{"url":"https://support.omadanetworks.com/us/document/133567/","tags":["vendor-advisory"]},{"url":"https://support.omadanetworks.com/en/download/software/omada-controller/","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.9,"vectorString":"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"}}],"credits":[{"lang":"en","value":"Joshua Chan, GitHub: https://github.com/popcorn94, Twitter: popc0rn94","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-08T17:21:39.911958Z","id":"CVE-2026-81531","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-08T17:21:54.913Z"}}]}}