# CVE-2026-91312: Oracle JD Edwards EnterpriseOne Tools privilege escalation in installation

Source: https://junglewise.ai/threats/cve-2026-91312-vulnerability-in-the-jd-edwards-enterpriseone-tools-product-of  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-91312 · Severity: medium · CVSS 6.5 · Published 2026-10-20

Oracle JD Edwards EnterpriseOne Tools is an enterprise resource planning system used to manage business operations and customer relations. A low-privileged local attacker can exploit an installation security flaw to gain unauthorized access to sensitive business data stored in the system, potentially compromising the entire organization's financial, operational, and customer information. The vulnerability requires local system access but can impact the broader infrastructure due to scope changes.

Technologies: [Oracle JD Edwards EnterpriseOne Tools](https://junglewise.ai/threats/technologies/jd-edwards-enterpriseone-tools). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-91312 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91312 being exploited in the wild.

**How severe is CVE-2026-91312?** Medium severity, with a CVSS score of 6.5, published 20 October 2026.

**Which products and versions are affected?** Oracle JD Edwards EnterpriseOne Tools 9.2.0.0 through 9.2.26.5.

**Is there a fix for CVE-2026-91312?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-91312 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-91312?** Check whether you run Oracle JD Edwards EnterpriseOne Tools at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An easily exploitable privilege escalation vulnerability exists in the Installation Security component of JD Edwards EnterpriseOne Tools that allows a low-privileged attacker with local logon access to compromise the application and access all confidential data. The attack requires local access (AV:L) and low privileges (PR:L) with no user interaction, resulting in high confidentiality impact and scope change affecting additional connected systems. No integrity or availability impact is documented.

## Affected products

- Oracle JD Edwards EnterpriseOne Tools 9.2.0.0 through 9.2.26.5

## Timeline

- 2026-10-20: disclosed

## References

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

## Related threats

- [Oracle JD Edwards EnterpriseOne Tools CSRF vulnerability](https://junglewise.ai/threats/cve-2026-91455-vulnerability-in-the-jd-edwards-enterpriseone-tools-product-of)
- [Oracle JD Edwards EnterpriseOne Tools unauthorized data access in Web Runtime SEC](https://junglewise.ai/threats/cve-2026-91384-vulnerability-in-the-jd-edwards-enterpriseone-tools-product-of)
- [Oracle JD Edwards EnterpriseOne Tools unauthorized data access in Monitoring and Diagnostics](https://junglewise.ai/threats/cve-2026-91383-vulnerability-in-the-jd-edwards-enterpriseone-tools-product-of)
- [Oracle JD Edwards EnterpriseOne Tools privilege escalation in Installation Security](https://junglewise.ai/threats/cve-2026-91329-vulnerability-in-the-jd-edwards-enterpriseone-tools-product-of)
- [Oracle JD Edwards EnterpriseOne Tools privilege escalation in Deployment SEC](https://junglewise.ai/threats/cve-2026-91328-vulnerability-in-the-jd-edwards-enterpriseone-tools-product-of)