# CVE-2026-83309: Oracle BI Publisher privilege escalation in Web Server

Source: https://junglewise.ai/threats/cve-2026-83309-oracle-bi-publisher-privilege-escalation-in-web-server  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-83309 · Severity: high · CVSS 8.5 · Published 2026-09-15

Oracle BI Publisher is a reporting and analytics component of Oracle Analytics that allows users to access and create business intelligence reports. A low-privileged attacker with network access can exploit a vulnerability in the Web Server to gain unauthorized access to sensitive data or modify database contents across the platform. This vulnerability has a scope change impact, meaning successful attacks can compromise other connected Oracle systems beyond BI Publisher itself.

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

## Quick answers

**Is CVE-2026-83309 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83309 being exploited in the wild.

**How severe is CVE-2026-83309?** High severity, with a CVSS score of 8.5, published 15 September 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-2026-83309?** 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-2026-83309 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-83309?** 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

The vulnerability is a privilege escalation issue in the Oracle BI Publisher Web Server component, exploitable by a low-privileged attacker over the network via HTTP (no user interaction required). The attack does not require special access controls to be bypassed (low complexity), allowing remote compromise with only basic authentication. An attacker can achieve unauthorized read access to critical confidential data and selective write/delete/update access to BI Publisher data. The scope is marked as changed, indicating lateral impact to other Oracle products. Patches are expected to be available through Oracle's security updates for affected versions (8.2.0.0.0, 12.2.1.4.0, and 26.01.0.0.0).

## Affected products

- Oracle BI Publisher 8.2.0.0.0, 12.2.1.4.0, 26.01.0.0.0

## Timeline

- 2026-09-15: disclosed

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.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 CSRF or open redirect in web server](https://junglewise.ai/threats/cve-2026-91555-vulnerability-in-the-oracle-bi-publisher-product-of-oracle)