CVE-2026-101590: Critical severity Oracle Helidon vulnerability
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-microprofile-security). Supported versions that are affected are 4.0.0-4.5.5. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
Affected Software
Event History
Frequently Asked Questions
Which deployments are affected?
Affected supported versions are Oracle Helidon 4.0.0 through 4.5.5, specifically the helidon-microprofile-security component.
Does exploitation require authentication or user interaction?
No. An unauthenticated attacker can exploit the issue remotely over HTTP, and no user interaction is required.
What access could an attacker gain?
Successful exploitation can allow unauthorized access to critical data or all data accessible to Helidon, and unauthorized creation, modification, or deletion of that data.