CVE-2026-97846

Multiple Vulnerabilities Disclosed in Keycloak 26.8.1 Release

Critical Vulnerability in Keycloak CVE-2026-97846 Exposes Token Security

Keycloak 26.8.1 released

CVE-2026-97846 CVE Vulnerability Disclosures / 21h Keycloak provides a feature called mTLS holder-of-key binding which ensures that a token can only be used by the client that originally requested it by binding it to their digital certificate. A flaw was discovered where the new Standard Token Exchange V2 feature does not check for this certificate. This allows an attacker with stolen client credentials to obtain a standard, unrestricted token that bypasses these security protections.

CVE-2026-97846 AKAOMA CVE VULNERABILITIES / 20h Keycloak provides a feature called mTLS holder-of-key binding which ensures that a token can only be used by the client that originally requested it by binding it to their digital certificate. A flaw was discovered where the new Standard Token Exchange V2 feature does not check for this certificate. This allows an attacker with stolen client credentials to obtain a standard, unrestricted token that bypasses these security protections.

CVE-2026-97846: Improper Authentication in Red Hat Red Hat Build of Keycloak Radar - Latest Security Threats / 14h Keycloak provides a feature called mTLS holder-of-key binding which ensures that a token can only be used by the client that originally requested it by binding it to their digital certificate. A flaw was discovered where the new Standard Token Exchange V2 feature does not check for this certificate. This allows an attacker with stolen client credentials to obtain a standard, unrestr