CVE-2026-70609
Electron: DevTools JavaScript Injection via Unsanitized Dock State Parameter
Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, 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, including when untrusted input reaches the mode argument of openDevTools() or untrusted content calls openDevTools() on a webview it embeds. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1.
INFO
Published Date :
Aug. 5, 2026, 6:17 p.m.
Last Modified :
Aug. 5, 2026, 6:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-70609
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Electron to version 39.8.7 or later.
- Update Electron to version 40.9.0 or later.
- Update Electron to version 41.2.0 or later.
- Update Electron to version 42.0.0-beta.1 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-70609.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-70609 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-70609
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-70609 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-70609 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 05, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'electron', 'product': 'electron', 'versions': [{'status': 'affected', 'version': '< 39.8.7'}, {'status': 'affected', 'version': '>= 40.0.0-alpha.1, < 40.9.0'}, {'status': 'affected', 'version': '>= 41.0.0-alpha.1, < 41.2.0'}, {'status': 'affected', 'version': '>= 42.0.0-alpha.1, < 42.0.0-beta.1'}]}] Added Description Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, 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, including when untrusted input reaches the mode argument of openDevTools() or untrusted content calls openDevTools() on a webview it embeds. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1. Added CVSS V3.1 AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N Added CWE CWE-94 Added CWE CWE-116 Added Reference https://github.com/electron/electron/commit/04614eed17986bddc43eb509ec870424ee6a47d1 Added Reference https://github.com/electron/electron/commit/2046ae87731d80a7b535512ae19acb529e10e33b Added Reference https://github.com/electron/electron/commit/969741f9f847c5c583f6bbc63ca22549dbd954ce Added Reference https://github.com/electron/electron/commit/efc4d3c6b6f1c04f658ca0d9d2512dcfe78eb7ba Added Reference https://github.com/electron/electron/pull/50665 Added Reference https://github.com/electron/electron/pull/50666 Added Reference https://github.com/electron/electron/pull/50667 Added Reference https://github.com/electron/electron/pull/50668 Added Reference https://github.com/electron/electron/releases/tag/v39.8.7 Added Reference https://github.com/electron/electron/releases/tag/v40.9.0 Added Reference https://github.com/electron/electron/releases/tag/v41.2.0 Added Reference https://github.com/electron/electron/releases/tag/v42.0.0-beta.1 Added Reference https://github.com/electron/electron/security/advisories/GHSA-4f78-qhmw-8j8m