# CVE-2026-91305: Oracle JD Edwards EnterpriseOne Tools unauthenticated data access in Installation Security

Source: https://junglewise.ai/threats/cve-2026-91305-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-2026-91305 · Severity: critical · CVSS 9.1 · Published 2026-10-20

JD Edwards EnterpriseOne Tools is enterprise resource planning software used to manage business operations and customer relations. An unauthenticated attacker on the network can exploit a flaw in the Installation Security component via HTTPS to read, modify, or delete critical business data without any credentials or user interaction. This could allow complete compromise of sensitive financial, customer, and operational information.

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-2026-91305 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91305 being exploited in the wild.

**How severe is CVE-2026-91305?** Critical severity, with a CVSS score of 9.1, 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-2026-91305?** 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-2026-91305 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-91305?** 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 vulnerability in the Installation Security component of JD Edwards EnterpriseOne Tools allows unauthenticated attackers with network access to gain unauthorized access to data through HTTPS. The vulnerability requires no user interaction or authentication and has a CVSS 3.1 score of 9.1, with impacts to both confidentiality and integrity of all accessible data within the product.

## 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)