CVSS v3
7.8
HIGH
EPSS Score
—
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
In JetBrains WebStorm before 2026.2 arbitrary code execution was possible via a project-supplied linter configuration
In JetBrains WebStorm before 2026.2 arbitrary code execution was possible via a project-supplied linter configuration
Active exploitation of CVE-2026-64807 has not been confirmed. The EPSS score is N/A%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2026-64807 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string 3.1.
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