Bug 2568175 (CVE-2026-123311)

Summary: CVE-2026-123311 IntelliJ IDEA: IntelliJ IDEA: Arbitrary command execution via hidden run control in Markdown preview
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerability-draftAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in IntelliJ IDEA. An attacker can achieve arbitrary command execution by convincing a user to interact with a specially crafted Markdown preview that contains a hidden run control. Successful exploitation allows unauthorized commands to execute with the permissions of the current user.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-06 14:33:11 UTC
In JetBrains IntelliJ IDEA before 2026.3, 
2026.2.4 command execution via a hidden run control in the Markdown preview was possible