CVE-2026-64807 Code injection in WebStorm

High 7.8 Published 23 Jul 2026 Updated 24 Jul 2026

Attackers can execute arbitrary code by tricking users into opening a project with a malicious linter configuration in WebStorm.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-64807?

CVE-2026-64807 is a high-severity code injection vulnerability in JetBrains WebStorm, published on 23 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

In JetBrains WebStorm before 2026.2 arbitrary code execution was possible via a project-supplied linter configuration

Weakness: CWE-829

Which versions are affected by CVE-2026-64807?

It affects 1 product.

Products include Jetbrains Webstorm.

How do I fix CVE-2026-64807?

No fix has been published for CVE-2026-64807 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-64807 being exploited?

There is no known exploitation of CVE-2026-64807 in the wild and no public exploit code.

Sources

Also known as GHSA-r7gx-4q54-2wrv.