CVE-2026-91306 Oracle Corporation CVE debrief

Who should care

Defenders and administrators of JD Edwards EnterpriseOne Tools, especially those with low-privileged logon access, should assess exposure and prioritize remediation. Security teams and vulnerability management teams should review the CVSS score and affected versions to determine the level of risk. Operators and platform administrators should verify affected deployments and plan for remediation. Monitoring and detection teams should review logs for exposed

Why it matters

CVE-2026-91306 is a high-severity vulnerability in JD Edwards EnterpriseOne Tools that allows low-privileged attackers to compromise the system, potentially leading to takeover. Defenders and administrators should assess exposure, prioritize remediation, and monitor logs for suspicious activity.

• Potential system takeover by low-privileged attackers
• Compromise of JD Edwards EnterpriseOne Tools
• Confidentiality, Integrity, and Availability impacts

Technical summary

The vulnerability in JD Edwards EnterpriseOne Tools, tracked as CVE-2026-91306, allows low-privileged attackers with logon access to compromise the system. Successful attacks can result in takeover of JD Edwards EnterpriseOne Tools. The CVSS 3.1 Base Score is 7.8, indicating high severity. The vulnerability affects versions 9.2.0.0-9.2.26.5 and is easily exploitable. Defenders should assess exposure and prioritize remediation based on the CVSS score and affected versions. The vulnerability can impact confidentiality, integrity, and availability.

Defensive priority

Apply patches immediately, assess exposure, and monitor logs for suspicious activity

Recommended defensive actions

• Apply patches from Oracle
• Assess exposure and prioritize remediation
• Monitor logs for suspicious activity
• Review compensating controls for exposed systems
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, its impacts, and affected versions. Oracle's security alert offers patch information. The vulnerability is tracked as CVE-2026-91306 and affects JD Edwards EnterpriseOne Tools. The CVSS 3.1 Base Score is 7.8, indicating high severity. Defenders should verify affected versions and assess exposure based on the CVE record and NVD entry.

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.