CVE-2026-61466

CRITICAL

CVE: CVE-2026-61466 - In Apache CXF's OAuth2 Dynamic Client Registration endpoint, the authorization server accepts and stores the `scope` value supplied in th...Sign in to save

CVSS

9.1

CVSS v3.1

EPSS

0.4%

Exploit Prediction Score

Published

August 6, 2026

Exploitability

EPSS probability 0.4%

Description

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.

Weaknesses

CWE-304

Affected Packages

No package data available.

Aliases

CVE-2026-61466

Related references

Publisher and database URLs for this record (shown for attribution; reading stays in Bugflare).

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