CVE-2026-83276

CVE-2026-83276 affects the helidon-webclient-http2 component of Oracle Helidon (part of Oracle Fusion Middleware), versions 4.0.0 through 4.5.4 . An unauthenticated attacker with network access via HTTP/2 can trigger a hang or frequently repeatable crash, resulting in a complete denial of service...

EUVD-2026-79628

Vulnerability in the Helidon product of Oracle Fusion Middleware component: helidon-webclient-http2. Supported versions that are affected are 4.0.0-4.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon. Successful attacks of...

CVE-2026-83276: Uncontrolled Resource Consumption

Vulnerability in the Helidon product of Oracle Fusion Middleware component: helidon-webclient-http2. Supported versions that are affected are 4.0.0-4.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon. Successful attacks of...

PT-2026-92798

Name of the Vulnerable Software and Affected Versions Oracle Fusion Middleware Helidon versions 4.0.0 through 4.5.4 Description A flaw in the helidon-webclient-http2 component allows an unauthenticated attacker with network access via HTTP/2 to compromise the system. This can lead to a hang or a...