# CVE-2026-83416: Oracle Coherence partial denial of service via HTTP

Source: https://junglewise.ai/threats/cve-2026-83416-oracle-coherence-partial-denial-of-service-via-http  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-83416 · Severity: medium · CVSS 4.3 · Published 2026-09-15

Oracle Coherence is a distributed data caching and processing platform used in enterprise applications to improve performance and availability. A vulnerability in the Core component allows an authenticated attacker to partially disrupt the service, reducing availability to legitimate users. This could impact business operations that depend on Coherence for real-time data processing and caching.

Technologies: [Oracle Coherence](https://junglewise.ai/threats/technologies/coherence). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-83416 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83416 being exploited in the wild.

**How severe is CVE-2026-83416?** Medium severity, with a CVSS score of 4.3, published 15 September 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-2026-83416?** 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-2026-83416 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-83416?** 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

This is a partial denial-of-service vulnerability in Oracle Coherence affecting the Core component. The vulnerability is easily exploitable and requires low-level privileges with network access via HTTP. No code execution or data confidentiality/integrity impacts are possible; only partial service availability is affected. The vulnerability impacts versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. Patches or mitigations should be available through Oracle's standard security update process.

## 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

- 2026-09-15: disclosed

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

## Related threats

- [Oracle Coherence privilege escalation via HTTP](https://junglewise.ai/threats/cve-2026-83415-oracle-coherence-privilege-escalation-via-http)
- [Oracle Coherence information disclosure in Core component](https://junglewise.ai/threats/cve-2026-83414-oracle-coherence-information-disclosure-in-core-component)
- [Oracle Coherence integrity bypass in Core](https://junglewise.ai/threats/cve-2026-83413-oracle-coherence-integrity-bypass-in-core)
- [Oracle Coherence unauthorized data access vulnerability](https://junglewise.ai/threats/cve-2026-83412-oracle-coherence-unauthorized-data-access-vulnerability)
- [Oracle Coherence privilege escalation in Core](https://junglewise.ai/threats/cve-2026-83411-oracle-coherence-privilege-escalation-in-core)