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CVE-2026-91637 is a critical vulnerability in the Security component of Oracle Essbase affecting supported version 21.8.3.0.0. A low-privileged attacker with network access over HTTP can exploit the vulnerability with low attack complexity and no user interaction to take over Oracle Essbase. Exploitation may also significantly affect additional products beyond Essbase. The CVSS 3.1 base score is 9.9, with vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. The underlying weakness and vulnerable function are not specified.
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A critical vulnerability in the Security component of Oracle Essbase 21.8.3.0.0 allows a low-privileged attacker with HTTP network access to take over Essbase without user interaction. Attacks may significantly impact additional, unspecified products. The CVSS 3.1 score is 9.9, with high confidentiality, integrity, and availability impacts and changed scope.
A critical vulnerability in the Security component of Oracle Essbase 21.8.3.0.0 allows a low-privileged attacker with HTTP network access to take over Oracle Essbase without user interaction. Successful exploitation can severely impact confidentiality, integrity, and availability, and may significantly affect additional products through a scope change. The stated CVSS v3.1 score is 9.9, with vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
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