CVE-2026-123311 · Package
NO FIX YET · SEE WHAT TO DO
In JetBrains IntelliJ IDEA before 2026.3 and 2026.2.4, a hidden run control in the Markdown preview allowed command execution. An attacker who gets a developer to open a crafted Markdown file could run commands on that developer's machine.
first public Nov 6, 2026 · 1 source
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Anyone running IntelliJ IDEA older than the fixed versions who opens Markdown files, including untrusted ones from repositories or downloads, may be exposed. The sources do not say whether preview must be enabled or whether user interaction is required beyond opening the file.
Not affected if up-to-date-ide
Who cares developer-tools, intellij-idea, jetbrains, markdown
2026.3 and 2026.2.42026.3 or 2026.2.4In JetBrains IntelliJ IDEA before 2026.3, 2026.2.4 command execution via a hidden run control in the Markdown preview was possible
This page as .md · .json · CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
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