GHSA-4f78-qhmw-8j8m

Suggest an improvement
Source
https://github.com/advisories/GHSA-4f78-qhmw-8j8m
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-4f78-qhmw-8j8m/GHSA-4f78-qhmw-8j8m.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-4f78-qhmw-8j8m
Aliases
Published
2026-08-05T17:32:47Z
Modified
2026-08-20T05:15:07Z
Severity
  • 5.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Electron: DevTools JavaScript Injection via Unsanitized Dock State Parameter
Details

Impact

The mode option of webContents.openDevTools() was not sanitized before use by the DevTools frontend. If an attacker can influence this value, script under their control may run in the DevTools context, which in unsandboxed configurations has access to Node.js.

Apps are only affected if untrusted input can reach the mode argument of openDevTools(), or if untrusted content can call openDevTools() on a <webview> it embeds. Apps that only ever pass a fixed dock mode are not affected.

Workarounds

Only pass fixed, allowlisted values (right, bottom, undocked, detach) as the DevTools mode, and do not expose openDevTools to untrusted content.

Fixed Versions

  • 42.0.0-beta.1
  • 41.2.0
  • 40.9.0
  • 39.8.7

For more information

If you have any questions or comments about this advisory, email Electron at security@electronjs.org

Database specific 
{
    "cwe_ids":  [
        "CWE-116",
        "CWE-94"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-08-05T17:32:47Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}
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
0 Unknown introduced version / All previous versions are affected
Fixed
39.8.7

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-4f78-qhmw-8j8m/GHSA-4f78-qhmw-8j8m.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
40.9.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-4f78-qhmw-8j8m/GHSA-4f78-qhmw-8j8m.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
41.2.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-4f78-qhmw-8j8m/GHSA-4f78-qhmw-8j8m.json"

npm / electron

Package

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

Affected ranges

Type
SEMVER
Events
Introduced
42.0.0-alpha.1
Fixed
42.0.0-beta.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-4f78-qhmw-8j8m/GHSA-4f78-qhmw-8j8m.json"