CVE-2026-25931

vscode-spell-checker is a basic spell checker that works well with code and documents. Prior to v4.5.4, DocumentSettings._determineIsTrusted treats the configuration value cSpell.trustedWorkspace as the authoritative trust flag. The value defaults to true (package.json) and is read from workspace configuration each time settings are fetched. The code coerces any truthy value to true and forwards it to ConfigLoader.setIsTrusted , which in turn allows JavaScript/TypeScript configuration files ( .cspell.config.js/.mjs/.ts , etc.) to be located and executed. Because no VS Code workspace-trust state is consulted, an untrusted workspace can keep the flag true and place a malicious .cspell.config.js ; opening the workspace causes the extension host to execute attacker-controlled Node.js code with the user’s privileges. This vulnerability is fixed in v4.5.4.
Configurations

No configuration.

History

09 Feb 2026, 23:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-02-09 23:16

Updated : 2026-02-10 15:22


NVD link : CVE-2026-25931

Mitre link : CVE-2026-25931

CVE.ORG link : CVE-2026-25931


JSON object : View

Products Affected

No product.

CWE
CWE-276

Incorrect Default Permissions

CWE-807

Reliance on Untrusted Inputs in a Security Decision

CWE-829

Inclusion of Functionality from Untrusted Control Sphere