CVE-2026-49366 Command injection in IntelliJ IDEA
Attackers can execute arbitrary commands via filename completion in IntelliJ IDEA, requiring an upgrade to the latest version.
- 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-2026-49366?
CVE-2026-49366 is a high-severity command injection vulnerability in Jetbrains Intellij Idea, published on 29 May 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 IntelliJ IDEA before 2026.1.1 command injection was possible via filename completion
Weakness: CWE-78
Which versions are affected by CVE-2026-49366?
It affects 1 product.
Products include Jetbrains Intellij Idea.
How do I fix CVE-2026-49366?
No fix has been published for CVE-2026-49366 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-49366 being exploited?
There is no known exploitation of CVE-2026-49366 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Intellij Idea
Sources
Also known as GHSA-rc87-jvvm-wgq4.