Description
Vulnerability in Oracle Essbase (component: Java Based Agent). The supported version that is affected is 21.8.3.0.0. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle Essbase executes 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 unauthorized access to critical data or complete access to all Oracle Essbase accessible data. CVSS 3.1 Base Score 6.0 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N).
Published: 2026-10-20
Score: 6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized data access via local privileged exploitation
Action: Immediate patch
AI Analysis

Impact

This vulnerability exists in the Java Based Agent component of Oracle Essbase and allows a high‑privileged attacker who already has logon access to the infrastructure where Essbase runs to compromise the application. The flaw can be exploited easily from a privileged local position and grants the attacker unauthorized access to all data exposed by Essbase. The impact is a confidentiality breach, potentially with a scope change that may affect additional Oracle products.

Affected Systems

Oracle Essbase version 21.8.3.0.0 is affected. Only this version from Oracle Corporation is listed as impacted.

Risk and Exploitability

The CVSS v3.1 base score of 6.0 indicates a moderate severity with local attack vector (AV:L), low authentication effort (AC:L), and high privilege required (PR:H). Once the flaw is exploited, the attacker can read all Essbase data and potentially affect other Oracle products due to scope change. The EPSS score is less than 1 %, showing a very low but non‑zero probability of exploitation in the wild, and the vulnerability is not listed in the CISA KEV catalog. Even though the risk is moderate, any environment where local privileged access is possible should apply the fix promptly.

Generated by OpenCVE AI on October 27, 2026 at 23:03 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the Oracle Essbase patch or upgrade to a version that includes the fix as described in the Oracle CPU October 2026 advisory (https://www.oracle.com/security-alerts/cpuoct2026.html).
  • Enforce least‑privilege access on the infrastructure hosting Essbase, limiting local privileged accounts to only those required for normal operation.
  • Implement continuous monitoring and logging of user activity on the Essbase servers to detect any unauthorized data access attempts.

Generated by OpenCVE AI on October 27, 2026 at 23:03 UTC.

Tracking

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Advisories

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History

Tue, 27 Oct 2026 23:30:00 +0000

Type Values Removed Values Added
Title Local Privileged Escalation in Oracle Essbase Java Based Agent

Tue, 27 Oct 2026 20:15:00 +0000

Type Values Removed Values Added
Title Local privileged data access vulnerability in Oracle Essbase
Weaknesses CWE-285

Tue, 27 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-269
Metrics ssvc

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


Fri, 23 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Title Local privileged data access vulnerability in Oracle Essbase
Weaknesses CWE-285

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

Type Values Removed Values Added
Title Oracle Essbase Java Agent Local Privileged Access Vulnerability
Weaknesses CWE-284

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

Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo

Wed, 21 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Title Oracle Essbase Java Agent Local Privileged Access Vulnerability
Weaknesses CWE-284

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

Type Values Removed Values Added
Description Vulnerability in Oracle Essbase (component: Java Based Agent). The supported version that is affected is 21.8.3.0.0. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle Essbase executes 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 unauthorized access to critical data or complete access to all Oracle Essbase accessible data. CVSS 3.1 Base Score 6.0 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N).
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': 6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-27T13:08:24.664Z

Reserved: 2026-09-14T22:10:16.650Z

Link: CVE-2026-91649

cve-icon Vulnrichment

Updated: 2026-10-27T13:08:18.891Z

cve-icon NVD

Status : Modified

Published: 2026-10-20T22:21:05.123

Modified: 2026-10-27T14:17:04.973

Link: CVE-2026-91649

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T23:15:07Z

Weaknesses