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keycloak: Keycloak: Privilege escalation due to oversized subject_token JWT

🗓️ 10 Jun 2026 17:38:19Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 9 Views

Keycloak vulnerability lets a low-privileged user escalate by sending an oversized subject_token in the TokenEndpoint; tokens over four thousand chars are dropped and the system falls back to client credentials.

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