CVE-2026-73911 Missing authorization in Helidon

Medium 5.4 Published 18 Aug 2026 Updated 28 Aug 2026

A low-privileged attacker can bypass authorization controls to read and modify Helidon accessible data via HTTP requests.

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-2026-73911?

CVE-2026-73911 is a medium-severity missing authorization vulnerability in Oracle Helidon, 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 Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 4.0.0-4.4.1. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).

Weakness: CWE-284

Which versions are affected by CVE-2026-73911?

It affects 1 product.

Products include Oracle Helidon.

How do I fix CVE-2026-73911?

No fix has been published for CVE-2026-73911 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-2026-73911 being exploited?

There is no known exploitation of CVE-2026-73911 in the wild and no public exploit code.

All Oracle Helidon vulnerabilities

Sources

Also known as GHSA-qp6m-x3x8-hmvx.