# CVE-2026-91608: Oracle BI Publisher unauthenticated data access via web server

Source: https://junglewise.ai/threats/cve-2026-91608-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-2026-91608 · Severity: high · CVSS 7.5 · Published 2026-10-20

Oracle BI Publisher, a business analytics reporting product, contains a vulnerability in its web server component that allows unauthenticated attackers to access it over the network. An attacker can exploit this to gain unauthorized access to sensitive business data or complete access to all data managed by BI Publisher without providing credentials. This puts corporate analytics and reporting data at risk of exposure.

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

## Quick answers

**Is CVE-2026-91608 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91608 being exploited in the wild.

**How severe is CVE-2026-91608?** High severity, with a CVSS score of 7.5, 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-2026-91608?** 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-2026-91608 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-91608?** 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

An easily exploitable vulnerability in the Oracle BI Publisher web server component allows unauthenticated, network-based access (HTTP) without requiring authentication or user interaction. The vulnerability results in high-impact confidentiality compromise, giving attackers unauthorized access to critical analytics data. A fix is available from Oracle.

## 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 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 unauthenticated takeover via HTTP](https://junglewise.ai/threats/cve-2026-91579-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)