CVE-2026-91286 Oracle Corporation CVE debrief

Who should care

Defenders responsible for JD Edwards EnterpriseOne Tools deployments, particularly those with versions 9.2.0.0-9.2.26.5, should assess exposure and implement necessary controls to prevent unauthorized data access or modifications.

Why it matters

CVE-2026-91286 is a high-severity vulnerability in JD Edwards EnterpriseOne Tools that allows unauthenticated attackers to compromise the product and access sensitive data. Defenders should prioritize verifying exposure, implementing compensating controls, and monitoring for potential unauthorized data access or modifications.

• Potential unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data.
• Potential unauthorized update, insert, or delete access to some JD Edwards EnterpriseOne Tools accessible data.
• Need to verify JD Edwards EnterpriseOne Tools versions 9.2.0.0-9.2.26.5 exposure in the environment.
• Priority on implementing compensating controls to restrict physical communication segment access.

Technical summary

The vulnerability, CVE-2026-91286, exists in JD Edwards EnterpriseOne Tools versions 9.2.0.0-9.2.26.5 and allows unauthenticated attackers with physical communication segment access to compromise the product. Successful attacks can result in unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data, as well as unauthorized update, insert, or delete access to some data. The CVSS 3.1 Base Score is 8.2, indicating high severity.

Defensive priority

Defenders should prioritize verifying exposure of JD Edwards EnterpriseOne Tools versions 9.2.0.0-9.2.26.5, implementing compensating controls to restrict physical communication segment access, and monitoring for potential unauthorized data access or modifications.

Recommended defensive actions

• Verify JD Edwards EnterpriseOne Tools versions 9.2.0.0-9.2.26.5 exposure in your environment.
• Implement compensating controls to restrict physical communication segment access.
• Monitor for potential unauthorized data access or modifications.
• Review and apply Oracle's security patches for JD Edwards EnterpriseOne Tools.
• Conduct a thorough review of the environment to identify potential entry points for attackers.
• Develop and implement a plan to address any identified vulnerabilities or weaknesses.
• Continuously monitor and review the security posture of JD Edwards EnterpriseOne Tools deployments.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, its impacts, and affected versions. Oracle's security alert documentation is also available for reference. Defenders should verify exposure of JD Edwards EnterpriseOne Tools versions 9.2.0.0-9.2.26.5 and implement compensating controls to restrict physical communication segment access. The vulnerability allows unauthenticated attackers with physical communication segment access to compromise the product, potentially resulting in unauthorized access to critical data or

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.