Arbitrary Code Execution Vulnerability in JetBrains WebStorm
CVE-2026-64805

8.4HIGH

Key Information:

Vendor

Jetbrains
Status
Webstorm
Vendor
CVE Published:
23 July 2026

What is CVE-2026-64805?

In JetBrains WebStorm prior to version 2026.2, an arbitrary code execution vulnerability exists that could be exploited before the necessary project trust is established via local package-manager tools. This flaw allows attackers to execute malicious code within the context of a trusted project environment, potentially compromising the integrity of the development process and exposing sensitive information.

Affected Version(s)

WebStorm 0 < 2026.2

References

https://www.jetbrains.com/privacy-security/issues-fixed/

CVSS V3.1

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.