CVE-2026-50628

Apache CXF: OAuth2: Inverted IP Binding Check Defeats Security Control

CVSS 9.8 CRITICALEPSS 0.6%CWE-20 CWE-358

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.8EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

12 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A logic error in OAuthRequestFilter rejects legitimate requests originating from the bound IP address, while blindly allowing requests from any other IP address. Enabling this security feature inadvertently creates an inverse security check. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Apache Software Foundation · Apache CXF

References

https://access.redhat.com/security/cve/CVE-2026-50628 https://bugzilla.redhat.com/show_bug.cgi?id=2488302 https://lists.apache.org/thread/vb3ho8lf228gh90m1fpnohf2008xrdxk https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50628.json http://www.openwall.com/lists/oss-security/2026/06/11/5