CVE-2026-123311

Hidden Run Control in Markdown Preview Enables Command Execution

Published Nov 6, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
In JetBrains IntelliJ IDEA before 2026.3,
2026.2.4 command execution via a hidden run control in the Markdown preview was possible

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Hidden Run Control in Markdown Preview Enables Command Execution
Type Values Removed Values Added
First Time appeared Jetbrains
Jetbrains intellij Idea
Vendors & Products Jetbrains
Jetbrains intellij Idea
Type Values Removed Values Added
Description In JetBrains IntelliJ IDEA before 2026.3, 2026.2.4 command execution via a hidden run control in the Markdown preview was possible
Weaknesses CWE-1021
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
JetBrains
Published
Updated
Nov 7, 2026, 4:55 AM
Reserved
Nov 5, 2026, 6:38 PM
Status
Analyzed
Published
Nov 6, 2026, 11:17 AM
Modified
Nov 10, 2026, 8:09 PM