CVE-2025-11419
A flaw was found in Keycloak. This vulnerability allows an unauthenticated remote attacker to cause a denial of service (DoS) by repeatedly initiating TLS 1.2 client-initiated renegotiation requests to exhaust server CPU resources, making the service unavailable.
| Software | From | Fixed in |
|---|---|---|
org.keycloak / keycloak-quarkus-dist
|
- | 26.0.16 |
|
org.keycloak / keycloak-quarkus-dist
|
26.1.0 | 26.2.10 |
|
org.keycloak / keycloak-quarkus-dist
|
26.3.0 | 26.4.1 |
- https://access.redhat.com/errata/RHSA-2025:18254
- https://access.redhat.com/errata/RHSA-2025:18255
- https://access.redhat.com/errata/RHSA-2025:18889
- https://access.redhat.com/errata/RHSA-2025:18890
- https://access.redhat.com/security/cve/CVE-2025-11419
- https://bugzilla.redhat.com/show_bug.cgi?id=2402142
- https://github.com/keycloak/keycloak/security/advisories/GHSA-q8hq-4h99-fj7x
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