Live › vulnerability › CVE-2026-91656
Go to dashboardOracle Essbase's Federated Partitions component has a flaw that lets a low-privileged user reach it over HTTP. A successful attack reads all Essbase-accessible data, changes or deletes some of it, and can partly crash the service, with a scope change that can affect other products.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| oracle essbase | vendor | = 21.8.3.0.0 | – |
| essbase | vendor | 21.8.3.0.0 | – |
21.8.3.0.0 is affected) and whether the Oct 2026 CPU patch for Essbase is installed (see the Database patch availability document in MOS)21.8.3.0.0 from My Oracle SupportEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
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).
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