CVE-2026-91473
Reported by oracle · Published October 20, 2026
Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: Web Listener). The supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle HTTP Server executes to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result in takeover of Oracle HTTP Server. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | Oracle HTTP Server | 12.2.1.4.0 |
| oracle | http_server | |
| Oracle Corporation | Oracle HTTP Server | 12.2.1.4.0 |
Timeline
- Oct 20, 2026 CVE Published
- Oct 21, 2026 EPSS Score (3 in total, the first dated here)
- Oct 21, 2026 Coalition ESS Score
- Oct 24, 2026 CVE Updated
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References
- Oracle Advisory vendor-advisory