Missing Authentication for Critical Function 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-17339178
- published15 Jun 2026
- disclosed12 Jun 2026
- creditGuanping Zhang
Introduced: 12 Jun 2026
CVE-2026-50623 (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 Missing Authentication for Critical Function due to a missing 'throw' keyword in the security context check within the TokenIntrospectionService method. An attacker can gain unauthorized access to the /services/oauth2/introspect endpoint by sending unauthenticated network requests. This is only exploitable if authentication has not been enabled on the service.