CVE-2026-64807: High severity JetBrains WebStorm vulnerability
Published Jul 23, 2026
·Updated
In JetBrains WebStorm before 2026.2 arbitrary code execution was possible via a project-supplied linter configuration
Affected Software
2 affected components
JetBrains WebStorm<2026.2
JetBrains WebStorm<2026.2.0
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
JetBrains WebStormto a version that resolves this vulnerability.Fixed in 2026.2
Event History
Jul 23, 2026
CVE Published
via MITRE·11:36 AM
Data Sourced
via MITRE·11:36 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·12:18 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-64807?
CVE-2026-64807 has a high severity rating of 7.8.
2
How do I fix CVE-2026-64807?
To fix CVE-2026-64807, update to JetBrains WebStorm version 2026.2 or later.
3
What type of vulnerability is CVE-2026-64807?
CVE-2026-64807 is an arbitrary code execution vulnerability due to unsafe linter configuration.
4
Which software is affected by CVE-2026-64807?
CVE-2026-64807 affects JetBrains WebStorm versions prior to 2026.2.
5
Is CVE-2026-64807 easy to exploit?
CVE-2026-64807 has an attack vector that is considered low complexity, making it easier to exploit.