CVE-2026-64806

Local code execution via pre-trust Node.js interpreter

Published Jul 23, 2026 · Updated Jul 23, 2026

Arbitrary code execution in JetBrains WebStorm before 2026.2 allows local users to execute code through the configured Node.js interpreter. The pre-trust workflow lets that interpreter load project-controlled functionality without first enforcing the project-trust boundary. Exploitation requires local access to an attacker-influenced project opened in WebStorm, and execution inherits the IDE user's privileges.

CVSS severity8.4
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary code execution in JetBrains WebStorm before 2026.2 allows local users to execute code through the configured Node.js interpreter. The pre-trust workflow lets that interpreter load project-controlled functionality without first enforcing the project-trust boundary. Exploitation requires local access to an attacker-influenced project opened in WebStorm, and execution inherits the IDE user's privileges.

The record

CVE
CVE-2026-64806
Published
Jul 23, 2026
Updated
Jul 23, 2026
Vendor
JetBrains
Product
WebStorm
Classifications
CWE-829, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

JetBrains · WebStormversion=0 <2026.2

Published CVSS scores

8.4JetBrains s.r.o.CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-829Inclusion of Functionality from Untrusted Control Sphere
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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