CVE-2026-83426: High severity Oracle Oracle Access Manager vulnerability
Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager. While the vulnerability is in Oracle Access Manager, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Access Manager accessible data as well as unauthorized access to critical data or complete access to all Oracle Access Manager accessible data. CVSS 3.1 Base Score 8.7 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N).
Affected Software
Event History
Frequently Asked Questions
Which deployments are affected?
Affected supported versions are Oracle Access Manager 12.2.1.4.0 and 14.1.2.1.0, specifically the Authentication Engine component.
Does exploitation require an authenticated account or user interaction?
No. The vulnerability can be exploited by an unauthenticated attacker with network access via HTTP, and it does not require user interaction.
How difficult is exploitation and what access must an attacker have?
Exploitation is rated high complexity. An attacker must have network reachability to the affected Oracle Access Manager service over HTTP.
What could a successful attacker do?
A successful attack may allow unauthorized access to critical data or all Oracle Access Manager-accessible data, and unauthorized creation, deletion, or modification of that data. The impact may also extend significantly to additional products.