GHSA-9wfr-w7mm-pc7f

Source

https://github.com/advisories/GHSA-9wfr-w7mm-pc7f

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-9wfr-w7mm-pc7f/GHSA-9wfr-w7mm-pc7f.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-9wfr-w7mm-pc7f

Aliases

CVE-2026-34769

Published

2026-04-03T02:39:15Z

Modified

2026-04-03T02:50:15.692148Z

Severity

7.7 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H CVSS Calculator

Summary

Electron: Renderer command-line switch injection via undocumented commandLineSwitches webPreference

Details

Impact

An undocumented commandLineSwitches webPreference allowed arbitrary switches to be appended to the renderer process command line. Apps that construct webPreferences by spreading untrusted configuration objects may inadvertently allow an attacker to inject switches that disable renderer sandboxing or web security controls.

Apps are only affected if they construct webPreferences from external or untrusted input without an allowlist. Apps that use a fixed, hardcoded webPreferences object are not affected.

Workarounds

Do not spread untrusted input into webPreferences. Use an explicit allowlist of permitted preference keys when constructing BrowserWindow or webContents options from external configuration.

Fixed Versions

41.0.0-beta.8
40.7.0
39.8.0
38.8.6

For more information

If there are any questions or comments about this advisory, send an email to security@electronjs.org

Database specific

{
    "cwe_ids": [
        "CWE-88",
        "CWE-912"
    ],
    "github_reviewed": true,
    "nvd_published_at": null,
    "severity": "HIGH",
    "github_reviewed_at": "2026-04-03T02:39:15Z"
}

References

Affected packages

npm / electron

Package

Name: electron; View open source insights on deps.dev
Purl: pkg:npm/electron

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

38.8.6

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-9wfr-w7mm-pc7f/GHSA-9wfr-w7mm-pc7f.json"

npm / electron

Package

Name: electron; View open source insights on deps.dev
Purl: pkg:npm/electron

Affected ranges

Type: SEMVER
Events: Introduced

39.0.0-alpha.1

Fixed

39.8.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-9wfr-w7mm-pc7f/GHSA-9wfr-w7mm-pc7f.json"

npm / electron

Package

Name: electron; View open source insights on deps.dev
Purl: pkg:npm/electron

Affected ranges

Type: SEMVER
Events: Introduced

40.0.0-alpha.1

Fixed

40.7.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-9wfr-w7mm-pc7f/GHSA-9wfr-w7mm-pc7f.json"

npm / electron

Package

Name: electron; View open source insights on deps.dev
Purl: pkg:npm/electron

Affected ranges

Type: SEMVER
Events: Introduced

41.0.0-alpha.1

Fixed

41.0.0-beta.8

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-9wfr-w7mm-pc7f/GHSA-9wfr-w7mm-pc7f.json"