9.1

CVE-2026-61466

Apache CXF: OAuth2 Dynamic Client Registration Scope Self-Escalation

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Apache ≫ Cxf Version < 3.6.12
Apache ≫ Cxf Version >= 4.0.0 < 4.1.8
Apache ≫ Cxf Version >= 4.2.0 < 4.2.3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.44% 0.362
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 9.1 3.9 5.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CWE-304 Missing Critical Step in Authentication

The product implements an authentication technique, but it skips a step that weakens the technique.

https://lists.apache.org/thread/2l1r16g79tpxd7fzrzr2q9oscwrjgljs
Vendor Advisory
Mailing List
http://www.openwall.com/lists/oss-security/2026/08/06/21