CLEANSTART-2026-AH74122 Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication

Security vulnerability affects the keycloak package. Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication...

BIT-KEYCLOAK-2026-16093 Keycloak-services: keycloak-services: required signed-jwt assertion policy can be bypassed with unsigned assertion headers

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned...

Improper Authentication

Keycloak is vulnerable to Improper Authentication. The vulnerability is due to improper validation of client authentication assertions, which allows an attacker with valid client credentials to supply a fake unsigned assertion header and bypass policies requiring signed JWT authentication...

CVE-2026-18208

A flaw was found in the OIDC token introspection endpoint of the keycloak-services component. Keycloak is an open-source identity and access management solution used to secure modern applications and services. The issue occurs when a confidential client, configured to receive signed JWT...

CVE-2026-16093 Keycloak-services: keycloak-services: required signed-jwt assertion policy can be bypassed with unsigned assertion headers

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned...

Reliance on Untrusted Inputs in a Security Decision

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Reliance on Untrusted Inputs in a Security Decision through the client authentication flow in the client...

PT-2024-32886 · Sonarsource · Sonarqube

Name of the Vulnerable Software and Affected Versions: SonarSource SonarQube versions prior to 9.9.5 LTA SonarSource SonarQube versions prior to 10.5 Description: An issue was discovered in SonarSource SonarQube where a user with the Administrator role can modify an existing configuration of a...

CVE-2024-47910

An issue was discovered in SonarSource SonarQube before 9.9.5 LTA and 10.x before 10.5. A SonarQube user with the Administrator role can modify an existing configuration of a GitHub integration to exfiltrate a pre-signed JWT...

Validation Bypass

prime-jwt is vulnerable to validation bypasses. The library allows the decoding of non-signed JWT signatures, which allows a malicious user to pass a JWT signature with a valid header using the none algorithm and bypass validation...