Quick answers
- Is CVE-2026-87393 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87393 being exploited in the wild.
- How severe is CVE-2026-87393?
- Medium severity, with a CVSS score of 6.5, published 20 October 2026.
- Which products and versions are affected?
- Oracle Outside In Technology 8.5.8.
- Is there a fix for CVE-2026-87393?
- 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-2026-87393 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-87393?
- Check whether you run Oracle Outside In Technology 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 denial-of-service vulnerability in the Outside In Core component allows unauthenticated, network-based attackers to cause a hang or repeated crash via HTTP requests with user interaction. The vulnerability is easily exploitable and results in availability impact only; no confidentiality or integrity compromise occurs.
Affected products
- Oracle Outside In Technology 8.5.8
Timeline
- 2026-10-20: disclosed