CVE-2026-91590

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Oracle BI Publisher Web Service API Access Control Flaw

Publication date: 2026-10-20

Last updated on: 2026-10-26

Assigner: Oracle

Description

Vulnerability in the Oracle BI Publisher product of Oracle Analytics (component: Web Service API). Supported versions that are affected are 8.2.0.0.0 and 26.01.0.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle BI Publisher. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle BI Publisher, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle BI Publisher accessible data as well as unauthorized read access to a subset of Oracle BI Publisher accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-10-26

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-91590

EUVD

EUVD-2026-106795

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Oracle BI Publisher	8.2.0.0.0
Oracle Corporation	Oracle BI Publisher	26.01.0.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle BI Publisher, part of Oracle Analytics. It affects versions 8.2.0.0.0 and 26.01.0.0.0. The flaw allows a low-privileged attacker with network access to potentially compromise the system through the Web Service API. Exploitation requires human interaction beyond the attacker's control.

Detection Guidance

This vulnerability is specific to Oracle BI Publisher and requires network access via HTTP. Detection should focus on identifying Oracle BI Publisher instances and checking for unauthorized data access or modifications. Monitor HTTP traffic to Oracle BI Publisher endpoints for unusual activity. Ensure all Oracle BI Publisher instances are updated to the latest secure version.

Impact Analysis

An attacker could exploit this to gain unauthorized access to Oracle BI Publisher data, including the ability to read, modify, or delete some data. This could lead to data breaches or corruption within the affected system.

Compliance Impact

This vulnerability allows unauthorized read, update, insert, or delete access to Oracle BI Publisher data, which could lead to unauthorized exposure or modification of sensitive information. This may impact compliance with regulations like GDPR (data confidentiality) and HIPAA (protected health information integrity) if such data is compromised.

Mitigation Strategies

Apply the latest security patches from Oracle for Oracle BI Publisher versions 8.2.0.0.0 and 26.01.0.0.0 to address the vulnerability. Ensure network access controls restrict unauthorized HTTP access to the Oracle BI Publisher Web Service API. Monitor for unusual data access or modification patterns in Oracle BI Publisher.

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