GHSA-9qh4-3jw8-366w

Source

https://github.com/advisories/GHSA-9qh4-3jw8-366w

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-9qh4-3jw8-366w/GHSA-9qh4-3jw8-366w.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-9qh4-3jw8-366w

Aliases

CVE-2026-102676

Published

2026-09-29T18:02:18Z

Modified

2026-09-29T18:15:04Z

Severity

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

Summary

Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions

Details

Impact

A <webview> could enable Node.js integration in its Web Workers even when its embedder had Node.js integration disabled, giving guest content more privilege than the embedder allowed.

Apps are only affected if they enable the <webview> tag and the embedder is unsandboxed. Apps that do not use <webview>, or that keep the embedder sandboxed, are not affected.

Workarounds

Remove nodeIntegrationInWorker from the guest preferences in a will-attach-webview handler, or do not enable the <webview> tag when loading untrusted content.

Fixed Versions

44.0.0-beta.5
43.4.1
42.9.2
41.10.6

For more information

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

Database specific

{
    "cwe_ids":  [
        "CWE-1188",
        "CWE-269"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-09-29T18:02:18Z",
    "nvd_published_at":  null,
    "severity":  "HIGH"
}

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

41.10.6

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-9qh4-3jw8-366w/GHSA-9qh4-3jw8-366w.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

42.9.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-9qh4-3jw8-366w/GHSA-9qh4-3jw8-366w.json"

npm / electron

Package

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

Affected ranges

Type: SEMVER
Events: Introduced

43.0.0-alpha.1

Fixed

43.4.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-9qh4-3jw8-366w/GHSA-9qh4-3jw8-366w.json"

npm / electron

Package

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

Affected ranges

Type: SEMVER
Events: Introduced

44.0.0-alpha.1

Fixed

44.0.0-beta.5

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-9qh4-3jw8-366w/GHSA-9qh4-3jw8-366w.json"