Paper/Archive/CVE-2026-91656

CVE-2026-91656

Oracle Corporation Oracle Essbase — Vulnerability in Oracle Essbase (component: Federated Partitions).

Description · from the CVE record

Vulnerability in Oracle Essbase (component: Federated Partitions). 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 as well as unauthorized update, insert or delete access to some of Oracle Essbase accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Essbase. CVSS 3.1 Base Score 9.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L).

Affected

ProductAffectedFixed inSource
Oracle Essbase21.8.3.0.0–CNA

Scores by source

oracle (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

advisoryoracle.com/security-alerts/cpuoct2026.html