CVE-2026-50628: CWE-20 Improper Input Validation in Apache Software Foundation Apache CXF
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.
AI Analysis
Technical Summary
This vulnerability arises from improper input validation in the OAuthRequestFilter component of Apache CXF. The filter incorrectly rejects legitimate requests originating from the bound IP address and instead allows requests from any other IP address, effectively reversing the intended security logic. This flaw can undermine access controls based on IP address validation. The issue is fixed in Apache CXF versions 4.2.2 and 4.1.7.
Potential Impact
The vulnerability causes a security feature intended to restrict access based on IP address to function inversely, potentially allowing unauthorized access from any IP address except the bound one. This misconfiguration can lead to unauthorized request acceptance and legitimate request denial, impacting the security posture of systems relying on this filter for access control.
Mitigation Recommendations
Users should upgrade Apache CXF to version 4.2.2 or 4.1.7, where this issue is fixed. No other mitigations are specified. Patch status is confirmed by the vendor advisory recommending these versions.
CVE-2026-50628: CWE-20 Improper Input Validation in Apache Software Foundation Apache CXF
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, which fixes this issue.
Affected software
pkg:maven/Apache Software Foundation/org.apache.cxf:cxf-rt-rs-security-oauth2Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from improper input validation in the OAuthRequestFilter component of Apache CXF. The filter incorrectly rejects legitimate requests originating from the bound IP address and instead allows requests from any other IP address, effectively reversing the intended security logic. This flaw can undermine access controls based on IP address validation. The issue is fixed in Apache CXF versions 4.2.2 and 4.1.7.
Potential Impact
The vulnerability causes a security feature intended to restrict access based on IP address to function inversely, potentially allowing unauthorized access from any IP address except the bound one. This misconfiguration can lead to unauthorized request acceptance and legitimate request denial, impacting the security posture of systems relying on this filter for access control.
Mitigation Recommendations
Users should upgrade Apache CXF to version 4.2.2 or 4.1.7, where this issue is fixed. No other mitigations are specified. Patch status is confirmed by the vendor advisory recommending these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-06-05T10:46:30.931Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2bd75be617e2d83448bfb2
Added to database: 6/12/2026, 9:54:35 AM
Last enriched: 6/12/2026, 10:10:26 AM
Last updated: 6/12/2026, 12:45:01 PM
Views: 5
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