VulnerabilityDeferred

CVE-2026-101588

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: WebSocket).

MEDIUM 5.3EPSS 0.32%

Does this matter?

Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own.

Description

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).

CVSS 3.1: 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.32% probability · 24th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Source: secalert_us@oracle.com

EPSS trend

EPSS moved from 0.3% on 21 October 2026 to 0.3% on 26 October 2026.

References

https://www.oracle.com/security-alerts/cpuoct2026.html

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.