{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61466","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","state":"PUBLISHED","assignerShortName":"apache","dateReserved":"2026-07-09T14:46:58.308Z","datePublished":"2026-08-06T11:24:27.466Z","dateUpdated":"2026-08-07T00:01:45.092Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.cxf:cxf-rt-rs-security-oauth2","product":"Apache CXF","vendor":"Apache Software Foundation","versions":[{"lessThan":"3.6.12","status":"affected","version":"0","versionType":"semver"},{"lessThan":"4.1.8","status":"affected","version":"4.0.0","versionType":"semver"},{"lessThan":"4.2.3","status":"affected","version":"4.2.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Guanping Zhang reported this vulnerability."}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>In Apache CXF's OAuth2 Dynamic Client Registration endpoint, the authorization server accepts and stores the `scope` value supplied in the client registration request verbatim, without validating it against an AS-defined allowlist. This could lead to a client self-assigning privileged scopes at registration time. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.</p>"}],"value":"In Apache CXF's OAuth2 Dynamic Client Registration endpoint, the authorization server accepts and stores the `scope` value supplied in the client registration request verbatim, without validating it against an AS-defined allowlist. This could lead to a client self-assigning privileged scopes at registration time. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue."}],"metrics":[{"other":{"content":{"text":"moderate"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-304","description":"CWE-304 Missing Critical Step in Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-08-06T11:24:27.466Z"},"references":[{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/2l1r16g79tpxd7fzrzr2q9oscwrjgljs"}],"source":{"discovery":"UNKNOWN"},"title":"Apache CXF: OAuth2 Dynamic Client Registration Scope Self-Escalation","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.1,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-06T15:19:01.154800Z","id":"CVE-2026-61466","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":"2026-08-06T15:19:29.688Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/08/06/21"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-08-07T00:01:45.092Z"}}]}}