CVE-2026-91615
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Java VM Component Vulnerability in Oracle Database Server

Publication date: 2026-10-20

Last updated on: 2026-10-26

Assigner: Oracle

Description
Vulnerability in the Java VM component of Oracle Database Server. Supported versions that are affected are 19.3-19.32, 21.3-21.23 and 23.4.0-23.26.3. Difficult to exploit vulnerability allows low privileged attacker having None privilege with network access via SOCKS5 to compromise Java VM. While the vulnerability is in Java VM, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java VM accessible data. CVSS 3.1 Base Score 6.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/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-2026-91615
EUVD
EUVD-2026-106807

Affected Vendors & Products

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Exploitability

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

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Executive Summary

This is a vulnerability in the Java VM component of Oracle Database Server affecting versions 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3. It allows a low-privileged attacker with network access via SOCKS5 to compromise the Java VM and impact other products. Successful exploitation can lead to unauthorized creation, deletion, or modification of critical data or all data accessible by the Java VM.

Detection Guidance

Detection requires checking Oracle Database Server versions. Affected versions are 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3. Use SQL queries like SELECT * FROM v$version to verify the installed version.

Impact Analysis

An attacker could exploit this to modify or delete sensitive data stored in the Oracle Database Server, potentially leading to data breaches, loss of integrity, or unauthorized changes to critical information. The impact is significant due to the scope change affecting additional products.

Compliance Impact

This vulnerability could lead to unauthorized data modification or deletion, violating integrity requirements in GDPR and HIPAA. Non-compliance risks include fines, legal penalties, and reputational damage due to compromised data integrity and potential data breaches.

Mitigation Strategies

Apply the latest Oracle Database Server patches immediately to address the Java VM vulnerability. Ensure all affected versions (19.3-19.32, 21.3-21.23, 23.4.0-23.26.3) are updated. Restrict network access to the SOCKS5 port and review user privileges to limit low-privileged access.

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