critical9.1
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 …
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | Cxf | before 3.6.12 from 4.0.0 before 4.1.8 from 4.2.0 before 4.2.3 |