Detections
Analytics

JetBrains WebStorm < 2026.2 Multiple Vulnerabilities

high Nessus Plugin ID 331023

Synopsis

The remote host is missing one or more security updates.

Description

The version of JetBrains WebStorm installed on the remote host is prior to 2026.2. It is, therefore, affected by multiple vulnerabilities:

 - Arbitrary code execution was possible before granting project trust via project-local linter tooling.
 (CVE-2026-64804)

 - Arbitrary code execution was possible before granting project trust via project-local package-manager tooling.
 (CVE-2026-64805)

 - Arbitrary code execution was possible before granting project trust via the configured Node.js interpreter.
 (CVE-2026-64806)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade JetBrains WebStorm to 2026.2 or later.

See Also

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

Plugin Details

Severity: High

ID: 331023

File Name: jetbrains_webstorm_2026_2.nasl

Version: 1.2

Type: Combined

Agent: windows, macosx, unix

Family: Misc.

Published: 7/30/2026

Updated: 7/31/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.15

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-64804

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.3

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-64806

Vulnerability Information

CPE: cpe:/a:jetbrains:webstorm

Required KB Items: installed_sw/JetBrains WebStorm

Exploit Ease: No known exploits are available

Patch Publication Date: 7/23/2026

Vulnerability Publication Date: 7/23/2026

Reference Information

CVE: CVE-2026-64804, CVE-2026-64805, CVE-2026-64806, CVE-2026-64807