Executive brief
Oracle Coherence, a distributed data grid solution used for high-speed data processing and application scaling, contains a critical security flaw. An unauthorized person can use the network to gain full control over the system without needing a username or password. This could lead to the theft of sensitive data, disruption of business operations, or complete system takeover.
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 the TCP protocol. Successful exploitation allows for a complete takeover of the Oracle Coherence instance, impacting confidentiality, integrity, and availability. Affected versions include 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 guidance.
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