What is CVE-2026-49366?

CVE-2026-49366 is a high-severity vulnerability in Jetbrains Intellij Idea, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-05-29.

How severe is CVE-2026-49366?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Jetbrains Intellij Idea

CVE-2026-49366

In JetBrains IntelliJ IDEA before 2026.1.1 command injection was possible via filename completion

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.000 (0.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Jetbrains Intellij Idea — versions 0
Jetbrains Intellij_idea

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

cve@jetbrains.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-49366?: CVE-2026-49366 is a high-severity vulnerability in Jetbrains Intellij Idea, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-05-29.
How severe is CVE-2026-49366?: High severity. CVSS v3 base score is 7.8 out of 10.