CVE-2026-91660

Vulnerability in Oracle Essbase (component: Security). The supported version that is affected is 21.8.3.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Essbase. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Essbase. CVSS 3.1 Base Score 4.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://www.oracle.com/security-alerts/cpuoct2026.html	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:oracle:essbase:21.8.3.0.0:*:*:*:*:*:*:*

History

27 Oct 2026, 22:19

Type	Values Removed	Values Added
CWE		CWE-400

23 Oct 2026, 17:18

Type	Values Removed	Values Added
References	~~() https://www.oracle.com/security-alerts/cpuoct2026.html -~~	() https://www.oracle.com/security-alerts/cpuoct2026.html - Vendor Advisory
CWE		NVD-CWE-noinfo
First Time		Oracle essbase Oracle
CPE		cpe:2.3:a:oracle:essbase:21.8.3.0.0:::::::*

20 Oct 2026, 22:21

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 22:21

Updated : 2026-10-27 22:19

NVD link : CVE-2026-91660

Mitre link : CVE-2026-91660

CVE.ORG link : CVE-2026-91660

JSON object : View

Products Affected

oracle

essbase

CWE

NVD-CWE-noinfo CWE-400

Uncontrolled Resource Consumption

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