Quick answers
- Is CVE-2026-91455 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91455 being exploited in the wild.
- How severe is CVE-2026-91455?
- Medium severity, with a CVSS score of 5.4, 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-2026-91455?
- 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-2026-91455 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-91455?
- 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
The vulnerability is a cross-site request forgery (CSRF) flaw in the E1 Dev Platform Tech component running on UNIX. An unauthenticated attacker with network access via HTTP can exploit it if a user with legitimate access visits a malicious site, leading to unauthorized read and write access to application data. No authentication is required from the attacker, but user interaction (visiting a crafted page) is necessary to trigger the attack.
Affected products
- Oracle JD Edwards EnterpriseOne Tools 9.2.0.0 through 9.2.26.5
Timeline
- 2026-10-20: disclosed