CVE-2026-83038 Auth bypass in Oracle WebLogic Server

Critical 9.9 Published 15 Sep 2026 Updated 16 Sep 2026

A low-privileged attacker can bypass authentication to take over Oracle WebLogic Server via HTTP, impacting confidentiality, integrity, and availability.

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-2026-83038?

CVE-2026-83038 is a critical authentication bypass vulnerability in Oracle Weblogic Server, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: TopLink Integration). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. While the vulnerability is in Oracle WebLogic Server, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).

Weakness: CWE-284

Which versions are affected by CVE-2026-83038?

It affects 1 product.

Products include Oracle Weblogic Server.

How do I fix CVE-2026-83038?

No fix has been published for CVE-2026-83038 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-2026-83038 being exploited?

There is no known exploitation of CVE-2026-83038 in the wild and no public exploit code.

All Oracle Weblogic Server vulnerabilities

Sources

Also known as GHSA-vv3j-hh67-rj4f.