CVE-2026-49367 Missing authorization in IntelliJ IDEA

High 8.0 Published 29 May 2026 Updated 30 May 2026

Attackers can execute arbitrary commands via the guest user account in JetBrains IntelliJ IDEA, requiring an upgrade to secure the IDE.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-49367?

CVE-2026-49367 is a high-severity missing authorization vulnerability in Jetbrains Intellij Idea, published on 29 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

In JetBrains IntelliJ IDEA before 2026.1.1 command execution was possible via the guest user account

Weakness: CWE-862

Which versions are affected by CVE-2026-49367?

It affects 1 product.

Products include Jetbrains Intellij Idea.

How do I fix CVE-2026-49367?

No fix has been published for CVE-2026-49367 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-2026-49367 being exploited?

There is no known exploitation of CVE-2026-49367 in the wild and no public exploit code.

All Jetbrains Intellij Idea vulnerabilities

Sources

Also known as GHSA-gjhj-r92c-v3ff.