CVE-2026-91547
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Oracle GoldenGate Unauthorized Data Access Vulnerability

Publication date: 2026-10-20

Last updated on: 2026-10-26

Assigner: Oracle

Description
Vulnerability in Oracle GoldenGate (component: Vendor Access Module). Supported versions that are affected are 19.1.0.0.0-19.32.0.0, 21.3-21.23 and 23.4-23.26.3.0.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle GoldenGate executes to compromise Oracle GoldenGate. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle GoldenGate accessible data. CVSS 3.1 Base Score 5.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

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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-2026-91547
EUVD
EUVD-2026-106775

Affected Vendors & Products

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-269 The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

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Executive Summary

This is a vulnerability in Oracle GoldenGate's Vendor Access Module affecting versions 19.1.0.0.0-19.32.0.0, 21.3-21.23, and 23.4-23.26.3.0.0. It allows a low-privileged attacker with local access to compromise Oracle GoldenGate and gain unauthorized access to critical or all accessible data.

Impact Analysis

If you use affected Oracle GoldenGate versions, an attacker with local access could steal sensitive data or gain full access to data processed by Oracle GoldenGate. This could lead to data breaches, unauthorized data exposure, or compliance violations depending on the data involved.

Compliance Impact

This vulnerability could lead to unauthorized data access, which may violate GDPR (data protection) or HIPAA (health data privacy) requirements. Organizations using affected versions may face compliance penalties, legal liabilities, or reputational damage due to potential data breaches.

Mitigation Strategies

Apply the latest Oracle GoldenGate patches for affected versions (19.1.0.0.0-19.32.0.0, 21.3-21.23, 23.4-23.26.3.0.0). Restrict logon access to systems running Oracle GoldenGate to authorized personnel only. Monitor for unauthorized data access or modifications in Oracle GoldenGate environments.

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