CVE-2026-101584 Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-websocket).
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-101584?
CVE-2026-101584 is a medium-severity vulnerability in Oracle Corporation Helidon, published on 20 Oct 2026.
Official description
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-websocket). Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 6.5 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L).
Weakness: CWE-400
Which versions are affected by CVE-2026-101584?
How do I fix CVE-2026-101584?
No fix has been published for CVE-2026-101584 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-101584 being exploited?
There is no known exploitation of CVE-2026-101584 in the wild and no public exploit code.
Sources
Also known as GHSA-q4x4-pxgf-vhcv.