CVE-2026-91639

HighCVSS 7.7/10Last modified Oct 27, 2026

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 unauthorized access to critical data or complete access to all Oracle Essbase accessible data. CVSS 3.1 Base Score 7.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N).

Metrics

CVSS 3.1 7.7/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-200

Affected software

VendorProductVersions
Oracle CorporationOracle Essbase21.8.3.0.0

References

Timeline

Published
Oct 20, 2026
Last modified
Oct 27, 2026
NVD status
Modified

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CVE-2026-91639: High severity, CVSS 7.7 | Vulnix