CVE-2026-91634

Vulnerability in Oracle Essbase (component: Security). The supported version that is affected is 21.8.3.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle Essbase. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Essbase accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

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, 13:17

Type	Values Removed	Values Added
CWE		CWE-200

23 Oct 2026, 17:19

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

20 Oct 2026, 22:21

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 22:21

Updated : 2026-10-27 13:17

NVD link : CVE-2026-91634

Mitre link : CVE-2026-91634

CVE.ORG link : CVE-2026-91634

JSON object : View

Products Affected

oracle

essbase

CWE

NVD-CWE-noinfo CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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