{"api_version":"1","generated_at":"2026-10-29T06:07:06+00:00","cve":"CVE-2026-3583","urls":{"html":"https://cve.report/CVE-2026-3583","api":"https://cve.report/api/cve/CVE-2026-3583.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-3583","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-3583"},"summary":{"title":"Improper Token Revocation via OAuth2 Scope Enforcement in Multiple WSO2 Products [Disrupted Authentication Flows]","description":"When the `allowed_scopes` configuration is enabled, the OAuth2 token introspection mechanism does not immediately invalidate a token in the cache after a revocation request. This results in a scenario where an access token that was introspected immediately before a revocation request may be returned again to the client after revocation, until the relevant cache entry is cleared.\n\nThe security consequence is that a revoked access token may be re-issued to the client during the cache lifetime. While the re-issued token is not treated as valid for API authorization, affected users may be unable to obtain a new valid access token until the cache is cleared, which can disrupt authentication flows.","state":"PUBLISHED","assigner":"WSO2","published_at":"2026-10-28 20:17:24","updated_at":"2026-10-29 04:18:36"},"problem_types":["CWE-613","CWE-613 CWE-613: Insufficient Session 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This results in a scenario where an access token that was introspected immediately before a revocation request may be returned again to the client after revocation, until the relevant cache entry is cleared.\n\nThe security consequence is that a revoked access token may be re-issued to the client during the cache lifetime. While the re-issued token is not treated as valid for API authorization, affected users may be unable to obtain a new valid access token until the cache is cleared, which can disrupt authentication flows."}],"value":"When the `allowed_scopes` configuration is enabled, the OAuth2 token introspection mechanism does not immediately invalidate a token in the cache after a revocation request. This results in a scenario where an access token that was introspected immediately before a revocation request may be returned again to the client after revocation, until the relevant cache entry is cleared.\n\nThe security consequence is that a revoked access token may be re-issued to the client during the cache lifetime. While the re-issued token is not treated as valid for API authorization, affected users may be unable to obtain a new valid access token until the cache is cleared, which can disrupt authentication flows."}],"impacts":[{"capecId":"CAPEC-250","descriptions":[{"lang":"en","value":"CAPEC-250 CAPEC-250: Session Fixation"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-613","description":"CWE-613: Insufficient Session Expiration","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-28T19:21:34.577Z","orgId":"ed10eef1-636d-4fbe-9993-6890dfa878f8","shortName":"WSO2"},"references":[{"tags":["vendor-advisory"],"url":"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5175/"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<span style=\"background-color: transparent;\">Follow the instructions given on </span><a target=\"_blank\" rel=\"nofollow\" href=\"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5175/#solution\"><span style=\"background-color: transparent;\">https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5175/#solution</span></a> <br>"}],"value":"Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5175/#solution"}],"source":{"advisory":"WSO2-2026-5175","discovery":"INTERNAL"},"title":"Improper Token Revocation via OAuth2 Scope Enforcement in Multiple WSO2 Products [Disrupted Authentication Flows]","x_generator":{"engine":"Vulnogram 0.2.0"}}},"cveMetadata":{"assignerOrgId":"ed10eef1-636d-4fbe-9993-6890dfa878f8","assignerShortName":"WSO2","cveId":"CVE-2026-3583","datePublished":"2026-10-28T19:21:34.577Z","dateReserved":"2026-03-05T02:24:55.645Z","dateUpdated":"2026-10-29T02:02:14.134Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-28 20:17:24","lastModifiedDate":"2026-10-29 04:18:36","problem_types":["CWE-613","CWE-613 CWE-613: Insufficient Session Expiration"],"metrics":{"cvssMetricV31":[{"source":"ed10eef1-636d-4fbe-9993-6890dfa878f8","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L","baseScore":3.1,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":1.6,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-29T01:51:44.830935Z","id":"CVE-2026-3583","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"3583","Ordinal":"1","Title":"Improper Token Revocation via OAuth2 Scope Enforcement in Multip","CVE":"CVE-2026-3583","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"3583","Ordinal":"1","NoteData":"When the `allowed_scopes` configuration is enabled, the OAuth2 token introspection mechanism does not immediately invalidate a token in the cache after a revocation request. This results in a scenario where an access token that was introspected immediately before a revocation request may be returned again to the client after revocation, until the relevant cache entry is cleared.\n\nThe security consequence is that a revoked access token may be re-issued to the client during the cache lifetime. While the re-issued token is not treated as valid for API authorization, affected users may be unable to obtain a new valid access token until the cache is cleared, which can disrupt authentication flows.","Type":"Description","Title":"Improper Token Revocation via OAuth2 Scope Enforcement in Multip"}]}}}