Code Execution Vulnerability in JetBrains IntelliJ IDEA
CVE-2026-123302

7.8HIGH

Key Information:

Vendor

Jetbrains
Status
Intellij Idea
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123302?

In JetBrains IntelliJ IDEA versions prior to 2026.3, 2026.2.4, 2026.1.5.1, and 2025.3.6.2, a vulnerability allows code execution in untrusted projects through script engine discovery. This presents a significant risk, as malicious actors could exploit this entry point to execute unauthorized code within user projects. Users are advised to upgrade to the latest version to mitigate this risk.

Affected Version(s)

IntelliJ IDEA 0 < 2026.3, 2026.2.4, 2026.1.5.1, 2025.3.6.2

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

.