CVE-2026-83416

Analyzed Analyzed - Analysis Complete

Denial of Service in Oracle Coherence

Publication date: 2026-09-15

Last updated on: 2026-09-21

Assigner: Oracle

Description

Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Coherence. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Coherence. CVSS 3.1 Base Score 4.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-21

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83416

EUVD

EUVD-2026-79717

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	coherence	12.2.1.4.0
oracle	coherence	14.1.1.0.0
oracle	coherence	14.1.2.0.0
oracle	coherence	15.1.1.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Coherence, a middleware product. It allows a low-privileged attacker with network access via HTTP to cause a partial denial of service (DOS) in Oracle Coherence. The impact is limited to availability, with no compromise of confidentiality or integrity.

Detection Guidance

Detection of CVE-2026-83416 requires checking for Oracle Coherence versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0. Verify installed versions using Oracle tools or package managers. Monitor network traffic for HTTP requests targeting Oracle Coherence services. Check logs for unusual partial denial of service patterns.

Impact Analysis

If you use Oracle Coherence versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0, an attacker could disrupt service availability, leading to partial outages of the Oracle Coherence system.

Compliance Impact

This vulnerability causes partial denial of service in Oracle Coherence, which could disrupt availability of affected systems. For GDPR, availability impacts may affect data processing operations requiring uninterrupted access. HIPAA requires safeguards for data availability, so partial DOS could impact compliance if critical healthcare systems are affected.

Mitigation Strategies

Apply the latest Oracle Coherence patches for affected versions (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0) as soon as possible. Restrict network access to Oracle Coherence via HTTP to trusted sources only. Monitor for unusual network traffic or partial denial of service attempts targeting the service.

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