# CVE-2026-91598: Oracle Business Intelligence Enterprise Edition information disclosure in Majel Mobile Service

Source: https://junglewise.ai/threats/cve-2026-91598-vulnerability-in-the-oracle-business-intelligence-enterprise  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-91598 · Severity: medium · CVSS 4.3 · Published 2026-10-20

Oracle Business Intelligence Enterprise Edition is an analytics platform used by organizations to analyze business data. A vulnerability in its Majel Mobile Service component allows a low-privileged attacker with network access to read sensitive analytics data they should not have access to. The vulnerability is exploitable over the network via HTTP without user interaction, making it a moderate risk to confidential data exposure.

Technologies: [Oracle Business Intelligence Enterprise Edition](https://junglewise.ai/threats/technologies/business-intelligence-enterprise-edition). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## 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

## References

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

## Related threats

- [Oracle Business Intelligence Enterprise Edition unauthorized data read](https://junglewise.ai/threats/cve-2026-91607-vulnerability-in-the-oracle-business-intelligence-enterprise)
- [Oracle Business Intelligence Enterprise Edition unauthorized read access in Visual Analyzer](https://junglewise.ai/threats/cve-2026-91600-vulnerability-in-the-oracle-business-intelligence-enterprise)
- [Oracle Business Intelligence Enterprise Edition physical attack in Platform Security](https://junglewise.ai/threats/cve-2026-91597-vulnerability-in-the-oracle-business-intelligence-enterprise)
- [Oracle Business Intelligence Enterprise Edition BI Search XSS in HTTP](https://junglewise.ai/threats/cve-2026-91588-vulnerability-in-the-oracle-business-intelligence-enterprise)
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