Critical severity · published Jun 12, 2026
CVE-2026-50628
Apache CXF: OAuth2: Inverted IP Binding Check Defeats Security Control
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
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 or 3.6.12, which fixes this issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Apache CXF · Apache Software Foundation
4.2.0 before 4.2.2; 4.0.0 before 4.1.7; before 3.6.12 · source: vendor
CX
Cxf · Apache
before 4.1.7; 4.2.0 before 4.2.2 · source: NVD
RH
Red Hat Fuse 7 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat JBoss Web Server 5 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16 · Red Hat
All versions, or not specified · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-50628
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-50628
Vendor Advisory
https://lists.apache.org/thread/vb3ho8lf228gh90m1fpnohf2008xrdxk
Mailing List
http://www.openwall.com/lists/oss-security/2026/06/11/5
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:37390
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-50628
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2488302
security.access.redhat.com
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50628.json
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