CVE-2026-83051 Missing authorization in Oracle WebCenter Portal

High 7.5 Published 15 Sep 2026 Updated 16 Sep 2026

Unauthenticated attackers can access critical data in Oracle WebCenter Portal due to missing authorization checks.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-83051?

CVE-2026-83051 is a high-severity missing authorization vulnerability in Oracle Webcenter Portal, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Runtime Tools). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Portal. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebCenter Portal accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Weakness: CWE-284

Which versions are affected by CVE-2026-83051?

It affects 1 product.

Products include Oracle Webcenter Portal.

How do I fix CVE-2026-83051?

No fix has been published for CVE-2026-83051 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-83051 being exploited?

There is no known exploitation of CVE-2026-83051 in the wild and no public exploit code.

All Oracle Webcenter Portal vulnerabilities

Sources

Also known as GHSA-4mmj-352g-7fj8.