CVE-2026-61177 Missing authorization in Oracle WebCenter Portal

High 8.1 Published 18 Aug 2026 Updated 20 Aug 2026

Low-privileged attackers can unauthorizedly read, create, delete, or modify critical data in Oracle WebCenter Portal via HTTP.

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

What is CVE-2026-61177?

CVE-2026-61177 is a high-severity missing authorization vulnerability in Oracle Webcenter Portal, published on 18 Aug 2026. Any signed-in user can exploit it over the network, 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 low privileged attacker with network access via HTTP to compromise Oracle WebCenter Portal. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle WebCenter Portal accessible data as well as unauthorized access to critical data or complete access to all Oracle WebCenter Portal accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

Weakness: CWE-284

Which versions are affected by CVE-2026-61177?

It affects 1 product.

Products include Oracle Webcenter Portal.

How do I fix CVE-2026-61177?

No fix has been published for CVE-2026-61177 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-2026-61177 being exploited?

There is no known exploitation of CVE-2026-61177 in the wild and no public exploit code.

All Oracle Webcenter Portal vulnerabilities

Sources

Also known as GHSA-xh4x-fj4m-jw43.