Command Execution Vulnerability in JetBrains IntelliJ IDEA
CVE-2026-123847

5.3MEDIUM

Key Information:

Vendor

Jetbrains
Status
Intellij Idea
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123847?

A vulnerability in JetBrains IntelliJ IDEA allows for command execution through specially crafted control characters during terminal command completion. This could enable an attacker to execute arbitrary commands, potentially compromising the security of affected systems. Users of IntelliJ IDEA versions prior to 2026.3 should take immediate action to update to the latest version to safeguard against this risk.

Affected Version(s)

IntelliJ IDEA 0 < 2026.3

References

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

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.