Quick answers
- Is CVE-2026-91309 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91309 being exploited in the wild.
- How severe is CVE-2026-91309?
- Medium severity, with a CVSS score of 5.9, 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-2026-91309?
- 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-2026-91309 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-91309?
- 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 unauthenticated network-based authentication bypass vulnerability exists in the Interoperability SEC component of JD Edwards EnterpriseOne Tools. The vulnerability requires high complexity to exploit but allows an attacker to access confidential data across the entire application. No information about a fix was available from the advisory source at the time of publication.
Affected products
- Oracle JD Edwards EnterpriseOne Tools 9.2.0.0 through 9.2.26.5
Timeline
- 2026-10-20: disclosed