Quick answers
- Is CVE-2026-91320 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91320 being exploited in the wild.
- How severe is CVE-2026-91320?
- Medium severity, with a CVSS score of 5.7, published 20 October 2026.
- Which products and versions are affected?
- Oracle Jdeveloper 12.2.1.4.0, 14.1.2.0.0.
- Is there a fix for CVE-2026-91320?
- 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-2026-91320 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-91320?
- Check whether you run Oracle Jdeveloper 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 in Oracle JDeveloper allows a high-privileged local attacker to corrupt application integrity and availability. The attack requires local system access (AV:L), high privilege (PR:H), and difficult exploitation (AC:H). Successful exploitation results in unauthorized data modification, deletion, or denial of service against JDeveloper's accessible data.
Affected products
- Oracle JDeveloper 12.2.1.4.0, 14.1.2.0.0
Timeline
- 2026-10-20: disclosed