CVE-2026-87364
High
Description
Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 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).
SeverityHigh
CVSS8.8
Exploit probability—
Product
Oracle Service Bus
PublishedOct 20, 2026
First seenOct 20, 2026
Weakness typeCWE-284Improper access control
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Oracle Corporation Oracle Service Bus | 12.2.1.4.0, 14.1.2.0.0 | — |
| oracle service_bus | 12.2.1.4.0, 14.1.2.0.0 | — |
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