CVE-2026-64804

highCVSS 8.4covered by 2 sourcesfirst seen 2026-07-23

A local attacker can exploit multiple vulnerabilities in JetBrains WebStorm to execute arbitrary program code.

CSIRTS triage

What: Multiple vulnerabilities allow a local attacker to execute arbitrary program code.
Who is affected: Deployments of JetBrains WebStorm.
Urgency: Remediation is important due to the potential for code execution.
Action: Update to the latest version of JetBrains WebStorm.

AI-assisted analysis generated from the source advisory — verify against the original.

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Low exploitation risk0.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.

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