CVE-2026-61466
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS probability
- 0.42%
- CWE
- CWE-304
- Published
- 2026-08-06
- Last modified
- 2026-08-07
Affected products
- Apache Software Foundation Apache CXF
- Apache Software Foundation Apache CXF
- Apache Software Foundation Apache CXF
Weakness type
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