Quick answers
- Is CVE-2026-91311 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91311 being exploited in the wild.
- How severe is CVE-2026-91311?
- High severity, with a CVSS score of 7.8, 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-2026-91311?
- 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-2026-91311 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-91311?
- 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 flaw exists in the Installation Security component of JD Edwards EnterpriseOne Tools. The vulnerability requires local access and low-privilege credentials but allows an attacker to escalate privileges and achieve full system compromise, affecting confidentiality, integrity, and availability. The affected versions are 9.2.0.0 through 9.2.26.5.
Affected products
- Oracle JD Edwards EnterpriseOne Tools 9.2.0.0 through 9.2.26.5
Timeline
- 2026-10-20: disclosed