CVE-2026-91303 Oracle Corporation CVE debrief

Who should care

Defenders and administrators of JD Edwards EnterpriseOne Tools, especially those with versions 9.2.0.0-9.2.26.5, should assess exposure and prioritize patching. They should also verify affected systems, monitor for potential human interaction required for exploitation, and review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

CVE-2026-91303 is a high-severity vulnerability in JD Edwards EnterpriseOne Tools that allows unauthenticated attackers to compromise the system via HTTP, requiring human interaction for successful exploitation, with potential for significant confidentiality, integrity, and availability impacts.

• Potential takeover of JD Edwards EnterpriseOne Tools
• High CVSS score indicating significant confidentiality, integrity, and availability impacts
• Requires human interaction for successful exploitation

Technical summary

The vulnerability in JD Edwards EnterpriseOne Tools (component: Installation Security) allows unauthenticated attackers with network access via HTTP to compromise the system. Successful attacks require human interaction and can result in a takeover of JD Edwards EnterpriseOne Tools. The vulnerability has a high CVSS score of 8.8, indicating significant confidentiality, integrity, and availability impacts. Defenders should assess exposure and prioritize patching for versions 9.2.0.0-9.2.26.5. The CVE record was published on 2026-10-20T22:20:32.020Z and has not been modified since then.

Defensive priority

High priority for patching and verifying affected systems

Recommended defensive actions

• Apply patches for JD Edwards EnterpriseOne Tools version 9.2.0.0-9.2.26.5
• Verify affected systems and prioritize patching
• Monitor for potential human interaction required for exploitation
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

Evidence from the NVD and Oracle indicates a high-severity vulnerability in JD Edwards EnterpriseOne Tools, with a CVSS score of 8.8. The vulnerability affects versions 9.2.0.0-9.2.26.5 and requires human interaction for successful exploitation. Defenders should verify affected systems and prioritize patching. The CVE record was published on 2026-10-20T22:20:32.020Z and has not been modified since then.

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.