CVE-2026-91534
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Denial of Service in Oracle Business Intelligence Enterprise Edition

Publication date: 2026-10-20

Last updated on: 2026-10-26

Assigner: Oracle

Description
Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Analytics (component: Analytics Web General). Supported versions that are affected are 8.2.0.0.0, 12.2.1.4.0 and 26.01.0.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Business Intelligence Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Business Intelligence Enterprise Edition as well as unauthorized update, insert or delete access to some of Oracle Business Intelligence Enterprise Edition accessible data and unauthorized read access to a subset of Oracle Business Intelligence Enterprise Edition accessible data. CVSS 3.1 Base Score 8.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H).

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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-2026-91534
EUVD
EUVD-2026-106766

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-306 The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

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Executive Summary

This is a vulnerability in Oracle Business Intelligence Enterprise Edition affecting versions 8.2.0.0.0, 12.2.1.4.0, and 26.01.0.0.0. It allows an unauthenticated attacker to remotely exploit the system via HTTP, causing denial of service or unauthorized access to data.

Detection Guidance

This vulnerability affects Oracle Business Intelligence Enterprise Edition versions 8.2.0.0.0, 12.2.1.4.0, and 26.01.0.0.0. Detection involves checking for vulnerable versions and monitoring for unauthorized access attempts or crashes. Use Oracle's official tools or scripts to scan for these versions. Monitor network traffic for unusual HTTP requests targeting the Oracle BIEE component.

Impact Analysis

An attacker could crash the system repeatedly, steal or modify some data, or read limited data without authorization. This disrupts operations and risks data confidentiality and integrity.

Compliance Impact

This vulnerability allows unauthorized access to data, including read, update, insert, or delete operations, which could lead to unauthorized exposure or modification of sensitive information. This may violate compliance requirements under GDPR (data protection) and HIPAA (health data confidentiality) by compromising confidentiality, integrity, and availability of regulated data.

Mitigation Strategies

Apply the latest security patches from Oracle for affected versions of Oracle Business Intelligence Enterprise Edition (8.2.0.0.0, 12.2.1.4.0, 26.01.0.0.0). If patches are unavailable, consider isolating the vulnerable component from untrusted networks or disabling HTTP access until updates are applied.

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