Is CVE-2026-91528 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-91528 being exploited in the wild.

How severe is CVE-2026-91528?

Medium severity, with a CVSS score of 4.3, published 20 October 2026.

Which products and versions are affected?

Oracle BI Publisher 12.2.1.4.0.

Is there a fix for CVE-2026-91528?

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-2026-91528 attacked?

It is attacked over the network.

Am I affected by CVE-2026-91528?

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.

CVE-2026-91528: Oracle BI Publisher unauthorized data read in BI Platform Security

CVE-2026-91528 · Severity: medium · CVSS 4.3 · Published 2026-10-20

Oracle BI Publisher is a component of Oracle Analytics that creates and distributes business intelligence reports. A vulnerability in its security layer allows attackers with low-level access to read sensitive report data they should not be able to access. An attacker with a valid low-privileged account can exploit this over the network to view confidential business data.

Technologies: Oracle BI Publisher. Vendors: Oracle.

Quick answers

Is CVE-2026-91528 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-91528 being exploited in the wild.
How severe is CVE-2026-91528?: Medium severity, with a CVSS score of 4.3, published 20 October 2026.
Which products and versions are affected?: Oracle BI Publisher 12.2.1.4.0.
Is there a fix for CVE-2026-91528?: 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-2026-91528 attacked?: It is attacked over the network.
Am I affected by CVE-2026-91528?: 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

A flaw in the BI Platform Security component of Oracle BI Publisher allows a low-privileged authenticated attacker to bypass authorization controls and read a subset of accessible data via HTTPS. The vulnerability requires valid credentials and network access but no user interaction or additional complexity. An attacker gains unauthorized read access to confidential business intelligence data.

Affected products

Oracle BI Publisher 12.2.1.4.0

Timeline

2026-10-20: disclosed

References

https://www.oracle.com/security-alerts/cpuoct2026.html

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