Executive brief
Oracle Coherence, a distributed data grid solution used for high-speed data processing and application scaling, contains a vulnerability in its core component. An unauthenticated attacker can exploit this over a network to cause the system to crash or hang, resulting in a total service outage. Additionally, the attacker may be able to modify, insert, or delete sensitive data stored within the grid, potentially compromising business records and operational integrity.
Technical details
A 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 the attacker to trigger a hang or a frequently repeatable crash, leading to a complete denial of service (DoS). Furthermore, the vulnerability permits unauthorized integrity impacts, specifically the ability to update, insert, or delete certain data accessible to Oracle Coherence. 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: disclosed: Initial disclosure by Oracle
- 2026-07-21: advisory: NVD entry published