CVE-2026-102676CWE-1188CWE-269privilege-escalation

CVE-2026-102676

High · published September 29, 2026

CVSS v3.1
8.3
EPSS
0%
Percentile
40.4
In the wild
Unconfirmed
What it is

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, an Electron <webview> guest could enable nodeIntegrationInWorker for its Web Workers even when the unsandboxed embedder had Node.js integration disabled, allowing untrusted guest content to create a Node-enabled worker with more privilege than the embedder granted. Applications that do not enable the <webview> tag or that keep the embedder sandboxed are not affected. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5.

The record
Technical detail
CVSS v3.1
8.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00479 · 40.4th percentile
Weaknesses
CWE-1188 · Initialization of a Resource with an Insecure Default; CWE-269 · Improper Privilege Management
Published
2026-09-29T21:17Z
Affected products (16)
ProductVersionsFixed in
electronjs/electron< 41.10.641.10.6
electronjs/electron≥ 42.0.0, < 42.9.242.9.2
electronjs/electron≥ 43.0.0, < 43.4.143.4.1
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
electronjs/electronall versions—
References (9)
https://github.com/electron/electron/commit/6462a2e1dc4e6adffd3b7d9b9be1474c45dcbbe2 · [email protected]https://github.com/electron/electron/commit/9a675aef8822bae4088567822969f900b3a37671 · [email protected]https://github.com/electron/electron/commit/b3ae0aab5cf81c2ed03d04df1ae8e69ecfab7886 · [email protected]https://github.com/electron/electron/commit/cd34f335c8664613db5b6e61ae51e2e1846233ae · [email protected]https://github.com/electron/electron/releases/tag/v41.10.6 · [email protected]https://github.com/electron/electron/releases/tag/v42.9.2 · [email protected]https://github.com/electron/electron/releases/tag/v43.4.1 · [email protected]https://github.com/electron/electron/releases/tag/v44.0.0-beta.5 · [email protected]https://github.com/electron/electron/security/advisories/GHSA-9qh4-3jw8-366w · [email protected]
EPSS history
Timeline
  • 01 OCT 03:44Z
    EPSS moved — → 0%
    epss
  • 29 SEP 16:56Z
    Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions
    cvelistv5