High 7.8Published Feb 9, 2026

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

Updated under an hour ago (Oct 27, 2026, 2:50 AM ET)

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Every CVE for streetsidesoftware vscode-spell-checker

Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-276, CWE-807, CWE-829
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Feb 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

streetsidesoftware vscode-spell-checker streetsidesoftware:vscode_spell_checker (from the name)	before 4.5.4	CNA record

References

References

https://github.com/streetsidesoftware/vscode-spell-checker/security/advisories/GHSA-mggq-68mr-58vj	x-refsource-confirm
https://github.com/streetsidesoftware/vscode-spell-checker/commit/f39af9a3a6f2a939a57171a24161ed735d41c575	x-refsource-misc
https://drive.google.com/file/d/1mT4SOkkHSHU6NFfKwekysydAd3FUAC6K/view?usp=sharing	x-refsource-misc
https://github.com/streetsidesoftware/vscode-spell-checker/releases/tag/code-spell-checker-v4.5.4	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.