CVE-2026-91312 Oracle Corporation CVE debrief

Who should care

System administrators, security teams, and IT professionals responsible for JD Edwards EnterpriseOne Tools installations should assess their exposure and take necessary actions to mitigate the vulnerability.

Why it matters

CVE-2026-91312 is a medium-severity vulnerability in JD Edwards EnterpriseOne Tools that allows low-privileged attackers to compromise the system and access critical data. Defenders should prioritize patching or updating affected versions, implementing additional monitoring and logging, and restricting access to minimize potential impact.

• Potential unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data.
• Possible compromise of JD Edwards EnterpriseOne Tools, allowing attackers to manipulate or extract sensitive information.
• Scope change: attacks may significantly impact additional products beyond JD Edwards EnterpriseOne Tools.

Technical summary

The vulnerability in JD Edwards EnterpriseOne Tools (component: Installation Security) allows low-privileged attackers with logon access to compromise JD Edwards EnterpriseOne Tools, potentially impacting additional products. Successful attacks can result in unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data. The CVSS 3.1 Base Score is 6.5 (Confidentiality impacts).

Defensive priority

Medium-priority defensive actions are recommended to address this vulnerability, as it allows low-privileged attackers to compromise JD Edwards EnterpriseOne Tools and access critical data.

Recommended defensive actions

• Review and apply patches or updates for JD Edwards EnterpriseOne Tools, specifically for versions 9.2.0.0-9.2.26.5.
• Implement additional monitoring and logging to detect potential attacks.
• Restrict access to JD Edwards EnterpriseOne Tools to minimize the impact of a potential compromise.
• Verify the integrity of JD Edwards EnterpriseOne Tools installations and data.
• Conduct a thorough review of system configurations and user access controls.
• Perform vulnerability scanning and penetration testing to identify potential weaknesses.
• Engage with security experts to assess and mitigate potential risks associated with the vulnerability.

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, its impact, and affected versions. Oracle's security alert page may contain additional details. The vulnerability is in the Installation Security component of JD Edwards EnterpriseOne Tools. Successful attacks can result in unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data. The scope change indicates that attacks may significantly impact additional products beyond JD Edwards EnterpriseOne Tools. Defe

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.