# CVE-2026-91579: Oracle BI Publisher unauthenticated takeover via HTTP

Source: https://junglewise.ai/threats/cve-2026-91579-vulnerability-in-the-oracle-bi-publisher-product-of-oracle  
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-2026-91579 · Severity: high · CVSS 8.8 · Published 2026-10-20

Oracle BI Publisher is a business intelligence reporting tool used to create and distribute reports and analytics. An unauthenticated attacker can exploit this vulnerability over the network to take complete control of the BI Publisher system, potentially compromising all reports, data, and analytics it manages. The attack requires some user interaction but no authentication credentials are needed.

Technologies: [Oracle BI Publisher](https://junglewise.ai/threats/technologies/bi-publisher). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-91579 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91579 being exploited in the wild.

**How severe is CVE-2026-91579?** High severity, with a CVSS score of 8.8, published 20 October 2026.

**Which products and versions are affected?** Oracle BI Publisher 8.2.0.0.0, 12.2.1.4.0, 26.01.0.0.0.

**Is there a fix for CVE-2026-91579?** 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-2026-91579 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-91579?** Check whether you run Oracle BI Publisher 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

This is an unauthenticated remote code execution or authorization bypass vulnerability in Oracle BI Publisher's HTTP interface, specifically within the BI Platform Security component. The vulnerability is easily exploitable over the network (CVSS AV:N/AC:L/PR:N) and requires user interaction (UI:R), leading to complete compromise including confidentiality, integrity, and availability impacts.

## Affected products

- Oracle BI Publisher 8.2.0.0.0, 12.2.1.4.0, 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 BI Publisher unauthenticated data access via web server](https://junglewise.ai/threats/cve-2026-91608-vulnerability-in-the-oracle-bi-publisher-product-of-oracle)
- [Oracle BI Publisher authorization bypass in Web Service API](https://junglewise.ai/threats/cve-2026-91590-vulnerability-in-the-oracle-bi-publisher-product-of-oracle)
- [Oracle BI Publisher unauthorized data access vulnerability](https://junglewise.ai/threats/cve-2026-91574-vulnerability-in-the-oracle-bi-publisher-product-of-oracle)
- [Oracle BI Publisher CSRF or open redirect in web server](https://junglewise.ai/threats/cve-2026-91555-vulnerability-in-the-oracle-bi-publisher-product-of-oracle)
- [Oracle BI Publisher unauthenticated data access in Web Server](https://junglewise.ai/threats/cve-2026-91554-vulnerability-in-the-oracle-bi-publisher-product-of-oracle)