CVE-2026-61466Apache CXF: OAuth2 Dynamic Client Registration Scope Self-Escalation

Descripción

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.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• https://lists.apache.org/thread/2l1r16g79tpxd7fzrzr2q9oscwrjgljs vendor-advisoryMailing ListVendor Advisory
• http://www.openwall.com/lists/oss-security/2026/08/06/21