# CVE-2026-91310: Oracle JD Edwards EnterpriseOne Tools privilege escalation in Installation SEC

Source: https://junglewise.ai/threats/cve-2026-91310-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-2026-91310 · Severity: high · CVSS 8.8 · Published 2026-10-20

JD Edwards EnterpriseOne Tools is an enterprise resource planning system used to manage business operations. A low-privileged attacker with network access can exploit a vulnerability in the Installation SEC component to gain complete control over the system, compromising confidentiality, integrity, and availability of business data.

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-2026-91310 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91310 being exploited in the wild.

**How severe is CVE-2026-91310?** High severity, with a CVSS score of 8.8, 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-2026-91310?** 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-2026-91310 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-91310?** 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

A privilege escalation vulnerability exists in the Installation SEC component of JD Edwards EnterpriseOne Tools that can be exploited by a low-privileged attacker with network access via the JDENET protocol. The vulnerability requires low privileges but no user interaction, and successful exploitation results in full system compromise including read, write, and execution capabilities.

## 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)