Quick answers
- Is CVE-2026-91598 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91598 being exploited in the wild.
- How severe is CVE-2026-91598?
- Medium severity, with a CVSS score of 4.3, published 20 October 2026.
- Which products and versions are affected?
- Oracle Business Intelligence Enterprise Edition 8.2.0.0.0, 26.01.0.0.0.
- Is there a fix for CVE-2026-91598?
- 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-2026-91598 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-91598?
- Check whether you run Oracle Business Intelligence Enterprise Edition 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 an authorization bypass or information disclosure flaw in the Majel Mobile Service component of Oracle Business Intelligence Enterprise Edition. It allows a low-privileged, authenticated attacker with network access to read a subset of unauthorized data via HTTP. No authentication bypass is required—only existing low-privilege credentials—and successful exploitation results in unauthorized read access to analytics data without requiring user interaction.
Affected products
- Oracle Business Intelligence Enterprise Edition 8.2.0.0.0, 26.01.0.0.0
Timeline
- 2026-10-20: disclosed