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 a network to gain full control of the affected system. This could lead to the complete theft of sensitive data, disruption of business operations, and unauthorized modification of application information.
Technical details
A critical vulnerability exists in the Core component of Oracle Coherence (versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0). 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. While the specific vulnerability class (e.g., deserialization) is not explicitly named in the summary, the high CVSS score and 'takeover' description are consistent with remote code execution or unauthorized administrative access. Users are advised to refer to the Oracle Critical Patch Update 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.