CVE-2026-123842 · Other
NO FIX YET · SEE WHAT TO DO
Before IntelliJ IDEA 2026.3, extracting a plugin archive could follow symlinks and write files outside the intended folder. An attacker who supplies a crafted plugin archive can overwrite files on the developer's machine.
first public Nov 6, 2026 · 1 source
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Developers running IntelliJ IDEA before 2026.3 who install plugin archives from untrusted sources. The sources do not give further detail on the exact trigger or whether a user must take a specific action.
Not affected if version-2026.3-or-later
Who cares ide, intellij-idea, java, jetbrains
2026.3 or laterIn JetBrains IntelliJ IDEA before 2026.3 arbitrary file write was possible via symlinks when extracting plugin archives
This page as .md · .json · CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
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