CVE-2026-123311
Received
Received - Intake
Command Execution in JetBrains IntelliJ IDEA via Markdown Preview
Vulnerability report for CVE-2026-123311, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-06
Last updated on: 2026-11-06
Assigner: JetBrains s.r.o.
Description
Description
In JetBrains IntelliJ IDEA before 2026.3,
2026.2.4 command execution via a hidden run control in the Markdown preview was possible
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| JetBrains | IntelliJ IDEA | 0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-1021 | The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain. |