Executive brief
Oracle Coherence, a widely used data grid solution for scaling applications and managing large amounts of data in-memory, contains a critical security flaw. An unauthorized attacker can exploit this vulnerability over the network to gain full control of the affected system. This could lead to the theft of sensitive business data, disruption of application services, and complete compromise of the data management infrastructure.
Technical details
A critical 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 affects versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. 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: disclosed
- 2026-07-21: advisory