Description
In JetBrains WebStorm before 2026.2 arbitrary code execution was possible via a project-supplied linter configuration
Affected products
jetbrains: webstorm
References1
- www.jetbrains.com/privacy-security/issues-fixed/ Vendor Advisory
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 8 · as of 14 November 2026
- CWE
- CWE-829
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.