CVE-2026-70688

High

Description

Vulnerability in Oracle Essbase (component: Calculator). The supported version that is affected is 21.8.1.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Essbase. Successful attacks of this vulnerability can result in takeover of Oracle Essbase. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

SeverityHigh

CVSS8.8

Exploit probability—

Product

Oracle Essbase

PublishedAug 18, 2026

First seenAug 18, 2026

Weakness typeCWE-284Improper access control

How to fix

Vendor advisories

oracle.com/security-alerts/cspuaug2026.html

Affected products

Product	Affected versions	Fixed in
oracle essbase	21.8.1.0.0	—

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