Electron: Renderer command-line switch injection via undocumented commandLineSwitches webPreference (electron electron)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.30 % · percentile 23 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Modified
Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, 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. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | HIGH 7.7 | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H | redhat-SADP |
| CVSS 3.1 | HIGH 7.7 | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 7.7 | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Advisories
- GHSA-9wfr-w7mm-pc7f — Electron: Renderer command-line switch injection via undocumented commandLineSwitches webPreference
European references
- ENISA EUVD · EUVD-2026-18937
- GCVE · GCVE-0-2026-34769
Affected configurations (NVD CPE)
cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*< 38.8.6cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*≥ 39.0.0 < 39.8.0cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*≥ 40.0.0 < 40.7.0cpe:2.3:a:electronjs:electron:41.0.0:alpha1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha2:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha3:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha4:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha5:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:alpha6:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta2:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta3:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta4:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta5:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta6:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:41.0.0:beta7:*:*:*:node.js:*:*
Affected products
| Product | Versions |
|---|---|
| electron · electron | affected < 38.8.6 ; affected >= 39.0.0-alpha.1, < 39.8.0 ; affected >= 40.0.0-alpha.1, < 40.7.0 ; affected >= 41.0.0-alpha.1, < 41.0.0-beta.8 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |