vscode-spell-checker has a workspace-trust bypass Code Execution_CVE-2026-25931

7.8 / 10

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

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.

Basic Information

ID CVE-2026-25931

Source GitHub_M

Published Feb 9, 2026 at 22:10

Affected Product

Vendor streetsidesoftware

Product vscode-spell-checker

Version < 4.5.4

Affected Versions streetsidesoftware vscode-spell-checker < 4.5.4

CWE Classification

CWE-276 CWE-807 CWE-829

References

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    "published": "2026-02-09T22:10:37.483Z",
    "modified": "2026-02-09T22:10:37.483Z",
    "type": "cve",
    "title": "vscode-spell-checker has a workspace-trust bypass Code Execution",
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