CVE-2026-46803 Auth bypass in Oracle WebCenter Portal

Critical 10.0 Published 16 Jun 2026 Updated 19 Jun 2026

Unauthenticated attackers can bypass authentication to take over Oracle WebCenter Portal, leading to full system compromise.

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-2026-46803?

CVE-2026-46803 is a critical authentication bypass vulnerability in Oracle Webcenter Portal, published on 16 Jun 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: Security Framework). 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. While the vulnerability is in Oracle WebCenter Portal, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Portal. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Weakness: CWE-306

Which versions are affected by CVE-2026-46803?

It affects 1 product.

Products include Oracle Webcenter Portal.

How do I fix CVE-2026-46803?

No fix has been published for CVE-2026-46803 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-46803 being exploited?

There is no known exploitation of CVE-2026-46803 in the wild and no public exploit code.

All Oracle Webcenter Portal vulnerabilities

Sources

Also known as GHSA-jr5j-fm92-5mm4.