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Authentication Scheme Parsing Bypass

🗓️ 15 Jan 2026 12:23:09Reported by Veracode Vulnerability DatabaseType 
veracode
 veracode
🔗 sca.analysiscenter.veracode.com👁 7 Views

Keycloak bypasses authentication parsing through permissive header parsing with non-standard separators and Bearer variations.

Related
Detection
Refs
Vulners
Node
OR
keycloak-parentkeycloak-parentRange1.0-alpha-126.5.0java
keycloak-parentkeycloak-parentMatch1.0-alpha-1java
keycloak-parentkeycloak-parentMatch1.0-alpha-1-12062013java
keycloak-parentkeycloak-parentMatch1.0-alpha-2java
keycloak-parentkeycloak-parentMatch1.0-alpha-3java
keycloak-parentkeycloak-parentMatch1.0-alpha-4java
keycloak-parentkeycloak-parentMatch1.0-beta-1-20150521java
keycloak-parentkeycloak-parentMatch1.0-beta-1-20150523java
keycloak-parentkeycloak-parentMatch1.0.1.finaljava
keycloak-parentkeycloak-parentMatch1.0.2.finaljava
keycloak-parentkeycloak-parentMatch1.0.3.finaljava
keycloak-parentkeycloak-parentMatch1.0.4.finaljava
keycloak-parentkeycloak-parentMatch1.0.5.finaljava
keycloak-parentkeycloak-parentMatch1.1.0.beta1java
keycloak-parentkeycloak-parentMatch1.1.0.beta2java
keycloak-parentkeycloak-parentMatch1.1.0.finaljava
keycloak-parentkeycloak-parentMatch1.1.1.finaljava
keycloak-parentkeycloak-parentMatch1.2.0.beta1java
keycloak-parentkeycloak-parentMatch1.2.0.finaljava
keycloak-parentkeycloak-parentMatch1.3.0.finaljava
keycloak-parentkeycloak-parentMatch1.3.1.finaljava
keycloak-parentkeycloak-parentMatch1.4.0.finaljava
keycloak-parentkeycloak-parentMatch1.5.0-finaljava
keycloak-parentkeycloak-parentMatch1.5.0.finaljava
keycloak-parentkeycloak-parentMatch1.5.1.finaljava
keycloak-parentkeycloak-parentMatch1.6.0.finaljava
keycloak-parentkeycloak-parentMatch1.6.1.finaljava
keycloak-parentkeycloak-parentMatch1.7.0.finaljava
keycloak-parentkeycloak-parentMatch1.8.0.alpha1java
keycloak-parentkeycloak-parentMatch1.8.0.finaljava
keycloak-parentkeycloak-parentMatch1.8.1.finaljava
keycloak-parentkeycloak-parentMatch1.9.0.finaljava
keycloak-parentkeycloak-parentMatch1.9.1.finaljava
keycloak-parentkeycloak-parentMatch1.9.2.finaljava
keycloak-parentkeycloak-parentMatch1.9.3.finaljava
keycloak-parentkeycloak-parentMatch1.9.4.finaljava
keycloak-parentkeycloak-parentMatch1.9.5.finaljava
keycloak-parentkeycloak-parentMatch1.9.7.finaljava
keycloak-parentkeycloak-parentMatch1.9.8.finaljava
keycloak-parentkeycloak-parentMatch2.0.0.finaljava
keycloak-parentkeycloak-parentMatch2.1.0.finaljava
keycloak-parentkeycloak-parentMatch2.2.0.finaljava
keycloak-parentkeycloak-parentMatch2.2.1.finaljava
keycloak-parentkeycloak-parentMatch2.3.0.finaljava
keycloak-parentkeycloak-parentMatch2.4.0.finaljava
keycloak-parentkeycloak-parentMatch2.5.0.finaljava
keycloak-parentkeycloak-parentMatch2.5.1.finaljava
keycloak-parentkeycloak-parentMatch2.5.4.finaljava
keycloak-parentkeycloak-parentMatch2.5.5.finaljava
keycloak-parentkeycloak-parentMatch3.0.0.finaljava
keycloak-parentkeycloak-parentMatch3.1.0.finaljava
keycloak-parentkeycloak-parentMatch3.2.0.finaljava
keycloak-parentkeycloak-parentMatch3.2.1.finaljava
keycloak-parentkeycloak-parentMatch3.3.0.finaljava
keycloak-parentkeycloak-parentMatch3.4.0.finaljava
keycloak-parentkeycloak-parentMatch3.4.1.finaljava
keycloak-parentkeycloak-parentMatch3.4.2.finaljava
keycloak-parentkeycloak-parentMatch3.4.3.finaljava
keycloak-parentkeycloak-parentMatch4.0.0.beta1java
keycloak-parentkeycloak-parentMatch4.0.0.beta2java
keycloak-parentkeycloak-parentMatch4.0.0.beta3java
keycloak-parentkeycloak-parentMatch4.0.0.finaljava
keycloak-parentkeycloak-parentMatch4.1.0.finaljava
keycloak-parentkeycloak-parentMatch4.2.0.finaljava
keycloak-parentkeycloak-parentMatch4.2.1.finaljava
keycloak-parentkeycloak-parentMatch4.3.0.finaljava
keycloak-parentkeycloak-parentMatch4.4.0.finaljava
keycloak-parentkeycloak-parentMatch4.5.0.finaljava
keycloak-parentkeycloak-parentMatch4.6.0.finaljava
keycloak-parentkeycloak-parentMatch4.7.0.finaljava
keycloak-parentkeycloak-parentMatch4.8.0.finaljava
keycloak-parentkeycloak-parentMatch4.8.1.finaljava
keycloak-parentkeycloak-parentMatch4.8.2.finaljava
keycloak-parentkeycloak-parentMatch4.8.3.finaljava

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18 Jul 2026 13:42Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.3
EPSS0.00361
SSVC
7