CVE-2026-60304: Oracle Coherence denial of service in Core component

CVE-2026-60304 · Severity: medium · CVSS 6.5 · Published 2026-07-21

Oracle Coherence, a data grid solution used for high-speed data processing and application scaling, is vulnerable to a denial-of-service attack. An attacker with basic network access can remotely cause the system to hang or crash repeatedly. This can lead to significant service outages and prevent applications from accessing critical cached data.

Technologies: Oracle Coherence. Vendors: Oracle.

Quick answers

Is CVE-2026-60304 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-60304 being exploited in the wild.
How severe is CVE-2026-60304?
Medium severity, with a CVSS score of 6.5, published 21 July 2026.
Which products and versions are affected?
Oracle Coherence 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0.
Is there a fix for CVE-2026-60304?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-60304 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-60304?
Check whether you run Oracle Coherence at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A vulnerability in the Core component of Oracle Coherence allows for a denial-of-service (DoS) attack. The flaw is easily exploitable by a low-privileged attacker with network access via TCP. Successful exploitation enables an attacker to cause a frequently repeatable crash or a system hang, resulting in a complete loss of availability for the affected Coherence instance. The vulnerability affects versions 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 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 publication of CVE-2026-60304
  • 2026-07-21: advisory: Oracle July 2026 Critical Patch Update released

References

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