Inclusion of Functionality from Untrusted Control Sphere in IntelliJ IDEA - CVE-2026-100256
Published: October 2, 2026 / Updated: October 2, 2026
Vulnerability identifier: #VU153131
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-100256
CWE-ID: CWE-829
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to inclusion of functionality from an untrusted control sphere in Structural Search script constraints when opening an untrusted project. A remote attacker can supply an untrusted project containing Structural Search script constraints to execute arbitrary code.
Affected software
IntelliJ IDEA
How to mitigate CVE-2026-100256
Install security update from vendor's website.
IntelliJ IDEA - update to 2026.2.3