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 remotely take full control of the system over the network without needing a username or password. This could lead to a total loss of data confidentiality, unauthorized changes to business information, and significant service disruptions.
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 the HTTP/2 protocol. Successful exploitation allows for a complete takeover of the Oracle Coherence instance, impacting confidentiality, integrity, and availability. The vulnerability affects versions 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 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0
Timeline
- 2026-07-21: disclosed: Initial publication of the CVE record.
- 2026-07-21: advisory: Oracle released the July 2026 Critical Patch Update.