What is the CVSS score of EUVD-2026-48232?

EUVD-2026-48232 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Webstorm EUVD-2026-48232

Q: Which versions of Webstorm are affected by EUVD-2026-48232?

JetBrains WebStorm versions before 2026.2 allow arbitrary code execution when developers open projects with malicious linter configurations, creating a direct path to compromise developer machines…. A patch is available.

Q: How to fix or mitigate EUVD-2026-48232?

Within 24 hours, inventory WebStorm installations and restrict opening of untrusted projects. Within 7 days, implement mandatory code review of linter configuration files (.eslintrc, .stylelintrc, etc.) before project initialization and disable automatic linter execution in WebStorm settings as interim protection. Within 30 days, upgrade all WebStorm instances to version 2026.2 or later upon release and validate that no malicious configurations were committed to repositories.

| CVE-2026-64807 HIGH

Inclusion of Functionality from Untrusted Control Sphere (CWE-829)

2026-07-23 cve@jetbrains.com

GHSA-r7gx-4q54-2wrv

RCE Webstorm JetBrains

7.8

CVSS 3.1 · Vendor: jetbrains

View

Vulnerability Assessment

Weakness

CWE

CWE-829

OWASP Top 10:2025

A08:2025 - Software or Data Integrity Failures

ASVS 5.0

V15 - Secure Coding and Architecture Trusted source inclusion only

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 23, 2026

Arbitrary code execution in JetBrains WebStorm before 2026.2 allows a malicious project to run attacker-controlled code on a developer's machine by supplying a crafted linter configuration that the IDE trusts and executes when the project is opened. Reported by JetBrains itself (cve@jetbrains.com) and tagged RCE, the flaw carries CVSS 7.8 (high) with a local vector and required user interaction. There is no public exploit identified at time of analysis and no CISA KEV listing, indicating no confirmed active exploitation to date.

Affected VersionsENISA

WebStorm 0 <2026.2

Affected Packages

euvd webstorm fix: 2026.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (jetbrains) PRIMARY 7.8 HIGH

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from Vendor (jetbrains) · only source for this CVE.

CVSS VectorVendor: jetbrains

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch available

Jul 23, 2026 - 14:04 EUVD

CVE Published

Jul 23, 2026 - 12:18 cve.org

HIGH 7.8

DescriptionCVE.org

In JetBrains WebStorm before 2026.2 arbitrary code execution was possible via a project-supplied linter configuration

Executive ViewAI

Why It Matters

JetBrains WebStorm versions before 2026.2 allow arbitrary code execution when developers open projects with malicious linter configurations, creating a direct path to compromise developer machines and potentially inject malicious code into source repositories. Development teams face significant supply chain risk.

Recommended Action

Within 24 hours, inventory WebStorm installations and restrict opening of untrusted projects. Within 7 days, implement mandatory code review of linter configuration files (.eslintrc, .stylelintrc, etc.) before project initialization and disable automatic linter execution in WebStorm settings as interim protection. Within 30 days, upgrade all WebStorm instances to version 2026.2 or later upon release and validate that no malicious configurations were committed to repositories.

Business Impact: High

Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: restrict WebStorm to trusted projects only; implement mandatory code review of linter configurations; disable automatic linter execution; isolate development workstations from production systems; monitor for suspicious configuration files and unexpected code execution.

Threat Intelligence Overview

EPSS Score

0.1%

Top 97% exploitable

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.