Quick answers
- Is CVE-2026-91615 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91615 being exploited in the wild.
- How severe is CVE-2026-91615?
- Medium severity, with a CVSS score of 6.3, published 20 October 2026.
- Which products and versions are affected?
- Oracle Database Server 19.3-19.32, 21.3-21.23, 23.4-23.26.3.
- Is there a fix for CVE-2026-91615?
- 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-2026-91615 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-91615?
- Check whether you run Oracle Database Server 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 difficult-to-exploit integrity vulnerability exists in the Java VM component of Oracle Database Server, triggered via SOCKS5 network access. The attack requires low privilege access and no user interaction. Successful exploitation allows unauthorized creation, deletion, or modification of critical data accessible through the Java VM, with potential scope changes affecting additional Oracle products.
Affected products
- Oracle Database Server 19.3-19.32, 21.3-21.23, 23.4-23.26.3
Timeline
- 2026-10-20: disclosed