CVE-2026-123311: Medium severity vulnerability

Published Nov 6, 2026

Updated

In JetBrains IntelliJ IDEA before 2026.3, 2026.2.4 command execution via a hidden run control in the Markdown preview was possible

Event History

Nov 6, 2026

CVE Published

via MITRE·10:28 AM

Data Sourced

via MITRE·10:28 AM

DescriptionSeverityWeakness

Frequently Asked Questions

Who is exposed to this issue?

Users of JetBrains IntelliJ IDEA versions before 2026.2.4 and before 2026.3 are affected when using the Markdown preview.

What would an attacker need to exploit it?

Exploitation requires local access, high attack complexity, and user interaction. No privileges are required according to the provided vector.

What is the potential impact?

Successful exploitation could allow command execution, with low confidentiality impact and high integrity impact. Availability impact is not indicated.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.