CVE-2026-83309

Deferred Deferred - Pending Action

Oracle BI Publisher Unauthorized Data Access Vulnerability

Publication date: 2026-09-15

Last updated on: 2026-09-21

Assigner: Oracle

Description

Vulnerability in the Oracle BI Publisher product of Oracle Analytics (component: Web Server). 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 low privileged attacker with network access via HTTP to compromise Oracle BI Publisher. 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 access to critical data or complete access to all Oracle BI Publisher accessible data as well as unauthorized update, insert or delete access to some of Oracle BI Publisher accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N).

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-15

Last Modified

2026-09-21

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83309

EUVD

EUVD-2026-79661

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	bi_publisher	8.2.0.0.0
oracle	bi_publisher	12.2.1.4.0
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 allows a low-privileged attacker with network access to exploit it via HTTP. The flaw enables unauthorized access to critical data or complete access to all Oracle BI Publisher accessible data. It also permits unauthorized updates, inserts, or deletes to some accessible data.

Detection Guidance

Detection of CVE-2026-83309 requires checking for vulnerable versions of Oracle BI Publisher (8.2.0.0.0, 12.2.1.4.0, or 26.01.0.0.0). Inspect Oracle BI Publisher installations and verify if they are exposed to HTTP network access. Monitor for unauthorized data access or modifications in Oracle BI Publisher accessible data.

Impact Analysis

If you use Oracle BI Publisher versions 8.2.0.0.0, 12.2.1.4.0, or 26.01.0.0.0, an attacker could gain unauthorized access to sensitive data or modify it. This could lead to data breaches, loss of confidentiality, or integrity issues in your systems.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR (data protection) and HIPAA (health data privacy) requirements. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Apply the latest security patches from Oracle for Oracle BI Publisher versions 8.2.0.0.0, 12.2.1.4.0, and 26.01.0.0.0. Restrict network access to HTTP ports used by Oracle BI Publisher. Monitor for unauthorized access or data changes.

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