What is GHSA-559h-f6mc-46rp?

GHSA-559h-f6mc-46rp is a security advisory published by GitHub Security Advisories with High severity. Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware (component: Core). ...

Which CVE IDs does GHSA-559h-f6mc-46rp cover?

GHSA-559h-f6mc-46rp covers the following CVE IDs: CVE-2026-87420. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-559h-f6mc-46rp?

GHSA-559h-f6mc-46rp has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-559h-f6mc-46rpHighCVSS 8.8

Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware (component: Core). ...

Vendor

GitHub Security Advisories

Published

October 21, 2026

Last Modified

October 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-87420 →

📋 Description

Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware (component: Core). The supported version that is affected is 14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Service Bus. Successful attacks of this vulnerability can result in takeover of Oracle Service Bus. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-87420
https://www.oracle.com/security-alerts/cpuoct2026.html
https://github.com/advisories/GHSA-559h-f6mc-46rp