CVE-2026-101588: Infoleak
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: 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. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
Affected Software
Event History
Frequently Asked Questions
Which deployments are exposed to this issue?
Oracle Helidon deployments using the WebSocket component are affected if they run supported versions 4.0.0 through 4.5.5 or version 27.0.0 and are reachable by an attacker over HTTP.
Does exploitation require authentication or user interaction?
No. The vulnerability is described as easily exploitable by an unauthenticated attacker with network access via HTTP, and it requires no user interaction.
What is the expected impact if exploitation succeeds?
A successful attack can provide unauthorized read access to a subset of data accessible to Helidon. The stated impact is limited to confidentiality; no integrity or availability impact is specified.