Missing Critical Step in Authentication Affecting org.apache.cxf:cxf-rt-rs-security-oauth2 package, versions [,3.6.12)[4.0.0,4.1.8)[4.2.0,4.2.3)
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-19342250
- published27 Aug 2026
- disclosed6 Aug 2026
- creditGuanping Zhang
Introduced: 6 Aug 2026
NewCVE-2026-61466 (opens in a new tab)How to fix?
Upgrade org.apache.cxf:cxf-rt-rs-security-oauth2 to version 3.6.12, 4.1.8, 4.2.3 or higher.
Overview
org.apache.cxf:cxf-rt-rs-security-oauth2 is a services framework.
Affected versions of this package are vulnerable to Missing Critical Step in Authentication in the scope parameter processing of the OAuth2 Dynamic Client Registration endpoint. An attacker can obtain unauthorized access to privileged scopes by supplying arbitrary values in the registration request, which are accepted and stored without validation.