GHSA-v93f-fgjr-hjrj

Suggest an improvement
Source
https://github.com/advisories/GHSA-v93f-fgjr-hjrj
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-v93f-fgjr-hjrj/GHSA-v93f-fgjr-hjrj.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-v93f-fgjr-hjrj
Aliases
Published
2026-08-05T16:24:17Z
Modified
2026-08-05T16:41:11Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Electron: window.open features string controls some window options considered privileged
Details

Impact

Some window options supplied by web content in the window.open() features string were applied to the new BrowserWindow without an allowlist. Untrusted content could set window options it should not control, including options that cause the main process to access attacker-chosen file or network paths.

Apps are only affected if untrusted content can call window.open() and the app does not override child window options via setWindowOpenHandler. Apps that deny window.open() for untrusted content, or set overrideBrowserWindowOptions explicitly, are not affected.

Workarounds

Return { action: 'deny' } from setWindowOpenHandler for untrusted content, or supply overrideBrowserWindowOptions so every window option is set explicitly.

Fixed Versions

  • 42.0.0-beta.3
  • 41.2.1
  • 40.9.0
  • 39.8.8

For more information

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

Database specific 
{
    "cwe_ids": [
        "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-05T16:24:17Z",
    "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
39.8.8

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-v93f-fgjr-hjrj/GHSA-v93f-fgjr-hjrj.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-v93f-fgjr-hjrj/GHSA-v93f-fgjr-hjrj.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
41.2.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-v93f-fgjr-hjrj/GHSA-v93f-fgjr-hjrj.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.3

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-v93f-fgjr-hjrj/GHSA-v93f-fgjr-hjrj.json"