CVE-2026-83416: Medium severity Oracle Oracle Coherence vulnerability
Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Coherence. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Coherence. CVSS 3.1 Base Score 4.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Mitigate partial denial of service (availability impact) of Oracle Coherence (Fusion Middleware) by restricting HTTP/network access to the Coherence service so only trusted clients can reach it.
Event History
Frequently Asked Questions
Who is exposed to this issue?
Oracle Coherence deployments running supported affected versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0 are exposed if a low-privileged attacker can reach the product over HTTP.
What access does an attacker need to exploit it?
The attacker needs network access via HTTP and low-privileged access. No user interaction is required, and the attack complexity is low.
What is the expected impact of successful exploitation?
Successful exploitation can allow an attacker to cause a partial denial of service affecting Oracle Coherence. The stated CVSS impacts do not include confidentiality or integrity loss.