Is CVE-2026-91634 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-91634?

CVE-2026-91634 has a CVSS v3 severity of MEDIUM (5.3).

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CVE-2026-91634

Description

Vulnerability in Oracle Essbase (component: Security). The supported version that is affected is 21.8.3.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle Essbase. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Essbase accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).