CVE-2026-34290 Denial of service in Oracle Identity Manager Connector

High 7.5 Published 21 Apr 2026 Updated 22 Apr 2026

Unauthenticated attackers can cause a complete denial of service in Oracle Identity Manager Connector via network access.

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-2026-34290?

CVE-2026-34290 is a high-severity denial of service vulnerability in Oracle Identity Manager Connector, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Oracle Identity Manager Connector product of Oracle Fusion Middleware (component: Core). The supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via TCP to compromise Oracle Identity Manager Connector. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Identity Manager Connector. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Weakness: CWE-400

Which versions are affected by CVE-2026-34290?

It affects 1 product.

Products include Oracle Identity Manager Connector.

How do I fix CVE-2026-34290?

No fix has been published for CVE-2026-34290 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-34290 being exploited?

There is no known exploitation of CVE-2026-34290 in the wild and no public exploit code.

Sources

Also known as GHSA-q23x-qvv8-gcm5.