Executive brief
Oracle Coherence, a distributed data grid solution used for high-speed data processing and application scaling, contains a critical security flaw. An unauthenticated attacker can remotely exploit this vulnerability over the network to gain full control of the system. This could lead to the theft of sensitive business data, disruption of critical application services, and total compromise of the affected environment.
Technical details
A vulnerability exists in the Core component of Oracle Coherence (part of Oracle Fusion Middleware). The flaw is easily exploitable by an unauthenticated attacker with network access via TCP. Successful exploitation allows for a complete takeover of the Oracle Coherence instance, impacting confidentiality, integrity, and availability. The vulnerability has a CVSS 3.1 base score of 9.8. Users are advised to refer to the Oracle Critical Patch Update (CPU) for July 2026 for remediation steps.
Affected products
- Oracle Coherence 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0
Timeline
- 2026-07-21: advisory: Initial disclosure by Oracle and NVD publication.