Authentication Bypass by Alternate Name Affecting org.apache.cxf:cxf-rt-rs-security-oauth2 package, versions [,4.1.7)[4.2.0,4.2.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGAPACHECXF-17339181
- published15 Jun 2026
- disclosed12 Jun 2026
- creditGuanping Zhang
Introduced: 12 Jun 2026
CVE-2026-50627 (opens in a new tab)How to fix?
Upgrade org.apache.cxf:cxf-rt-rs-security-oauth2 to version 4.1.7, 4.2.2 or higher.
Overview
org.apache.cxf:cxf-rt-rs-security-oauth2 is a services framework.
Affected versions of this package are vulnerable to Authentication Bypass by Alternate Name via the JwtAccessTokenValidator class. An attacker can gain unauthorized access to protected resources by replaying a JWT access token intended for one resource server against a different resource server.