Loading vulnerability…
CVE-2026-91651 affects the Essbase Web Platform component of Oracle Essbase 21.8.3.0.0. A low-privileged attacker with network access over HTTP can exploit the vulnerability to take over Oracle Essbase without user interaction. Exploitation has high attack complexity; the underlying weakness and vulnerable function are not specified. The vulnerability has a CVSS 3.1 base score of 8.5 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H), reflecting high confidentiality, integrity, and availability impacts and potential effects beyond the vulnerable product.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in the Essbase Web Platform 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. Exploitation has high attack complexity and may significantly impact additional products through a scope change. The CVSS v3.1 score is 8.5, with high confidentiality, integrity, and availability impacts.
A vulnerability in the Essbase Web Platform 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. Exploitation has high complexity and can significantly affect additional, unspecified products. The CVSS 3.1 base score is 8.5, with high confidentiality, integrity, and availability impacts and changed scope.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.