Quick answers
- Is CVE-2026-87359 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87359 being exploited in the wild.
- How severe is CVE-2026-87359?
- High severity, with a CVSS score of 8.8, published 20 October 2026.
- Which products and versions are affected?
- Oracle Service Bus 12.2.1.4.0, 14.1.2.0.0.
- Is there a fix for CVE-2026-87359?
- 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-2026-87359 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-87359?
- Check whether you run Oracle Service Bus 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 in Oracle Service Bus Core component is easily exploitable by a low-privileged attacker with network access via HTTP. The attack requires no user interaction or special conditions, allowing the attacker to gain high-confidence unauthorized control over the Service Bus. Successful exploitation results in complete compromise of confidentiality, integrity, and availability.
Affected products
- Oracle Service Bus 12.2.1.4.0, 14.1.2.0.0
Timeline
- 2026-10-20: disclosed