CVE-2026-100256 JetBrains IntelliJ IDEA - Remote Code Execution

JetBrains IntelliJ IDEA < 2026.2.3 contains a remote code execution caused by unsafe Structural Search script constraints in untrusted projects, letting attackers execute arbitrary code remotely, exploit requires untrusted project context.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.13% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
30 September 2026
Updated
15 October 2026
Weakness
CWE-829

Vendor fix

Update to version 2026.2.3 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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