Description
It was found that the Keycloak Node.js adapter 2.5 - 3.0 did not handle invalid tokens correctly. An attacker could use this flaw to bypass authentication and gain access to restricted information, or to possibly conduct further attacks.
Remediation
References
https://bugzilla.redhat.com/show_bug.cgi?id=1445271
http://rhn.redhat.com/errata/RHSA-2017-1203.html