Read the docs
TI-2026-44071 Aliases CVE-2026-61466GHSA-pwwh-3685-58r7

Apache CXF: OAuth2 Dynamic Client Registration Scope Self-Escalation

Priority MEDIUM 46CWE-304Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · High
Fix status
Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00711 53rd percentileScored 2026-11-07
Fix Partial Apache CXF (Apache Software Foundation): 3.6.12, 4.1.8, 4.2.3Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache CXFbefore 3.6.12; 4.0.0 to before 4.1.8; 4.2.0 to before 4.2.33.6.12, 4.1.8, 4.2.3Patch availableCNA
  • Apache CXF VendorApache Affected before 3.6.12; 4.0.0 to before 4.1.8; 4.2.0 to before 4.2.3 Fixed in 3.6.12, 4.1.8, 4.2.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*before 3.6.12; 4.0.0 to before 4.1.8; 4.2.0 to before 4.2.3VulnerableApache
  • cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:* Versions before 3.6.12; 4.0.0 to before 4.1.8; 4.2.0 to before 4.2.3 Vulnerable ·Apache

Remediation

  • Fix · CNA Apache CXF (Apache Software Foundation) Fixed in 3.6.12, 4.1.8, 4.2.3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache CXF 3.6.12, 4.1.8, 4.2.3

    12 records Highest priority Priority MEDIUM 10 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-47481 Apache CXF: Unsafe deserialization of inbound JMS ObjectMessagePriority MEDIUM 51
    • TI-2026-47860 Apache CXF: DefaultEncryptingCodeDataProvider allows unlimited authorization code replayPriority MEDIUM 50
    • TI-2026-46751 Apache CXF: Self-issued ID token claims validation skippedPriority MEDIUM 47
    Show all 12 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Fuse 7AffectedNo fix yet: Fix deferred
Red Hat JBoss Web Server 5AffectedNo fix yet: Fix deferred
Red Hat build of Apache Camel for Spring Boot 4AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-61466
  2. 2026-10-03 Alias added: GHSA-pwwh-3685-58r7

References

Advisory 1

  • TI-2019-09264 Incorrect authorization in Apache CXF CVSS 3.1CRITICAL 9.8
  • TI-2020-10930 Apache CXF Reflected XSS in the services listing page via the styleSheetPath CVSS 3.1MEDIUM 6.1
  • TI-2010-01990 Apache CXF 2.0.x before 2.0.13, 2.1.x before 2.1.10, and 2.2.x before 2.2.9, as used in… CVSS 3.1CRITICAL 9.8
  • TI-2022-22907 Apache CXF SSRF Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-47481 Apache CXF: Unsafe deserialization of inbound JMS ObjectMessage CVSS 3.1CRITICAL 9.8
  • TI-2025-31053 Apache CXF: Untrusted JMS configuration can lead to RCE CVSS 3.1CRITICAL 9.8
See all 79 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences