CVE-2026-87420 Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware (component: Core).
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-87420?
CVE-2026-87420 is a high-severity vulnerability in Oracle Service Bus, published on 20 Oct 2026.
Official 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).
Weakness: CWE-284
Which versions are affected by CVE-2026-87420?
How do I fix CVE-2026-87420?
No fix has been published for CVE-2026-87420 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-87420 being exploited?
There is no known exploitation of CVE-2026-87420 in the wild and no public exploit code.
Sources
Also known as GHSA-559h-f6mc-46rp.