Executive brief
Oracle Coherence, a widely used data grid solution for scaling applications and managing large-scale data, contains a critical security flaw. An unauthorized attacker can remotely take full control of the system over the network without needing any login credentials. This could lead to a total loss of data confidentiality, unauthorized modification of information, and service outages.
Technical details
A critical vulnerability exists in the Core component of Oracle Coherence (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. 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 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: Initial disclosure by Oracle
- 2026-07-21: advisory: NVD record published