{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-84321","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-09-01T16:17:43.080Z","datePublished":"2026-10-12T20:49:36.955Z","dateUpdated":"2026-10-13T15:50:29.123Z"},"containers":{"cna":{"title":"Nginx UI: Standalone short tokens survive administrative revocation in cache and authenticate again after account re-enable","problemTypes":[{"descriptions":[{"cweId":"CWE-613","lang":"en","description":"CWE-613: Insufficient Session Expiration","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-wq4w-vwvq-q3x9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-wq4w-vwvq-q3x9"},{"name":"https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2","tags":["x_refsource_MISC"],"url":"https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2"},{"name":"https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1","tags":["x_refsource_MISC"],"url":"https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1"}],"affected":[{"vendor":"0xJacky","product":"nginx-ui","versions":[{"version":"< 2.4.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-12T20:49:36.955Z"},"descriptions":[{"lang":"en","value":"Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, GenerateShortToken creates standalone short-token records without a long Token value, but DeleteUserTokens invalidates cached entries only when the long Token field is nonempty. A revoked short token can therefore remain in the short_token cache and authenticate again if the associated account is re-enabled before the cache entry expires because GetTokenUserByShortToken reads the surviving entry, restoring access to HTTP or WebSocket routes that accept short-token authentication. This issue is fixed in version 2.4.1."}],"source":{"advisory":"GHSA-wq4w-vwvq-q3x9","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-13T15:47:39.126608Z","id":"CVE-2026-84321","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"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":"2026-10-13T15:50:29.123Z"}}]}}