CVE-2026-61466

critical Apache
CVSS v3 Base Score
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
None
Availability
High
Published: August 6, 2026 (31 days ago)
Last Modified: August 7, 2026
Vendor: Apache
Source: NVD

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.

CWE

CWE-304

Affected Products

apache cxf

References

🔗 lists.apache.org 🔗 www.openwall.com