CVE-2026-64806

Analyzed Analyzed - Analysis Complete

Arbitrary Code Execution in JetBrains WebStorm Before 2026.2

Publication date: 2026-07-23

Last updated on: 2026-07-28

Assigner: JetBrains s.r.o.

Description

In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting project trust via the configured Node.js interpreter

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-23

Last Modified

2026-07-28

Generated

2026-08-12

AI Q&A

2026-07-23

EPSS Evaluated

2026-08-11

NVD

CVE-2026-64806

EUVD

EUVD-2026-48231

Affected Vendors & Products

Vendor	Product	Version / Range
jetbrains	webstorm	to 2026.2.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-829	The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.

Attack-Flow Graph

Executive Summary

This vulnerability in JetBrains WebStorm before version 2026.2 allows arbitrary code execution before a user grants project trust when using a configured Node.js interpreter. This means an attacker could execute malicious code on a victim's system without their explicit permission.

Detection Guidance

This vulnerability involves arbitrary code execution in JetBrains WebStorm before 2026.2 before project trust is granted. Detection requires checking the installed WebStorm version. Use the command 'webstorm.sh --version' or check Help > About in the IDE. If the version is below 2026.2, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow attackers to run malicious code on your system, potentially leading to data theft, system damage, or unauthorized access. Since it occurs before project trust is granted, even trusted projects could be compromised.

Compliance Impact

The vulnerability allows arbitrary code execution before project trust is granted via the Node.js interpreter in JetBrains WebStorm before 2026.2. This could potentially lead to unauthorized access or data breaches, which may impact compliance with standards like GDPR or HIPAA by compromising data integrity and confidentiality.

Mitigation Strategies

Update JetBrains WebStorm to version 2026.2 or later to address the arbitrary code execution vulnerability before project trust is granted.

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