CVE-2026-61466
Apache CXF: OAuth2 Dynamic Client Registration Scope Self-Escalation
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-304 |
| Vendor | apache software foundation |
| Product | apache cxf |
| Published | Aug 6, 2026 |
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Affected Versions
Apache Software Foundation / Apache CXF
0 < 3.6.12 4.0.0 < 4.1.8 4.2.0 < 4.2.3
References
Credits
Guanping Zhang reported this vulnerability.