# CVE-2026-91555: Oracle BI Publisher CSRF or open redirect in web server

Source: https://junglewise.ai/threats/cve-2026-91555-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-2026-91555 · Severity: medium · CVSS 6.1 · Published 2026-10-20

Oracle BI Publisher is a reporting and analytics tool used to create and distribute business intelligence content. This vulnerability in its web server allows an unauthenticated attacker to trick users into modifying or reading sensitive reports and data through a malicious link or webpage. While the attack requires user interaction, it can affect data confidentiality and integrity across the reporting platform.

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

## Quick answers

**Is CVE-2026-91555 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91555 being exploited in the wild.

**How severe is CVE-2026-91555?** Medium severity, with a CVSS score of 6.1, 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-2026-91555?** 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-2026-91555 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-91555?** 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 unauthenticated vulnerability exists in Oracle BI Publisher's web server component that requires user interaction to exploit. The attack is network-accessible via HTTP and has a scope change, meaning successful compromise can impact additional products beyond BI Publisher itself. Exploitation grants unauthorized read and write access to accessible data.

## 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 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 unauthenticated data access in Web Server](https://junglewise.ai/threats/cve-2026-91554-vulnerability-in-the-oracle-bi-publisher-product-of-oracle)