CVE-2026-91278 Oracle Corporation CVE debrief

Who should care

System administrators and security teams responsible for JD Edwards EnterpriseOne Tools deployments should assess exposure and prioritize remediation efforts to prevent potential unauthorized access to critical data. This includes reviewing and applying Oracle's security patches, restricting access to sensitive data and systems, and monitoring system logs for suspicious activity.

Why it matters

This vulnerability allows low-privileged attackers to compromise JD Edwards EnterpriseOne Tools, potentially leading to unauthorized access to critical data. System administrators and security teams should assess exposure, prioritize remediation, and monitor system logs.

• Potential unauthorized access to critical data
• Need to verify affected versions and apply patches
• Requires monitoring system logs for suspicious activity

Technical summary

The vulnerability in JD Edwards EnterpriseOne Tools, classified under CVE-2026-91278, allows low-privileged attackers with logon access to compromise the system. This can potentially lead to unauthorized access to critical data. The vulnerability has a CVSS 3.1 Base Score of 5.5 and affects versions 9.2.0.0-9.2.26.5 of the product. The CVSS Vector is (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). System administrators and security teams should assess exposure and prioritize remediation efforts to prevent potential unauthorized access to critical data.

Defensive priority

Medium-priority defensive actions are recommended to address this vulnerability.

Recommended defensive actions

• Review and apply Oracle's security patches for JD Edwards EnterpriseOne Tools
• Restrict access to sensitive data and systems
• Monitor system logs for suspicious activity
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is needed. The vulnerability is exploitable by low-privileged attackers with logon access, and successful attacks can result in unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data. The CVSS Vector is (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

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.