Host-level Code Execution Vulnerability in JetBrains IntelliJ IDEA
CVE-2026-86504

7.8HIGH

Key Information:

Vendor

Jetbrains
Status
Intellij Idea
Vendor
CVE Published:
7 September 2026

What is CVE-2026-86504?

In JetBrains IntelliJ IDEA versions prior to 2026.2.2, a vulnerability exists that enables host-level code execution due to the absence of project-trust confirmation before building a Dev Container. This oversight can allow malicious code to execute on the host system, posing significant risks to security. Users are urged to update to the latest version to mitigate this risk.

Affected Version(s)

IntelliJ IDEA 0 < 2026.2.2

References

https://www.jetbrains.com/privacy-security/issues-fixed/

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.