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.

Severity (CVSS)

Base score9.1
SeverityCritical
VersionCVSS 3.1
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Provided byCISA-ADP

Weaknesses

  • CWE-304 — CWE-304 Missing Critical Step in Authentication

Affected products

VendorProductVersions
Apache Software FoundationApache CXF0 to <3.6.12; 4.0.0 to <4.1.8; 4.2.0 to <4.2.3

References

Authoritative sources

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Generated from the official CVE List on 07 Aug 2026 07:02 UTC.