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. While the vulnerability is in Oracle Essbase, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Essbase. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
History

Fri, 23 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Title Oracle Essbase Remote Code Execution Vulnerability

Fri, 23 Oct 2026 14:45:00 +0000

Type Values Removed Values Added
Title Remote Takeover of Oracle Essbase via HTTP
Weaknesses CWE-269

Fri, 23 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 21 Oct 2026 11:30:00 +0000

Type Values Removed Values Added
Title Remote Takeover of Oracle Essbase via HTTP
Weaknesses CWE-269

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description 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. While the vulnerability is in Oracle Essbase, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Essbase. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
First Time appeared Oracle
Oracle essbase
CPEs cpe:2.3:a:oracle:essbase:21.8.3.0.0:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle essbase
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published: 2026-10-20T21:26:46.713Z

Updated: 2026-10-23T11:06:21.242Z

Reserved: 2026-09-14T22:10:16.649Z

Link: CVE-2026-91638

cve-icon Vulnrichment

Updated: 2026-10-23T10:57:41.427Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-20T22:21:03.817

Modified: 2026-10-23T17:19:18.217

Link: CVE-2026-91638

cve-icon Redhat

No data.