CVE-2026-70609

MEDIUM

Electron: DevTools JavaScript Injection via Unsanitized Dock State Parameter

Title source: cna
STIX 2.1

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.

References (13)

Core 13
Core References
X_Refsource_Misc x_refsource_misc
https://github.com/electron/electron/pull/50665
X_Refsource_Misc x_refsource_misc
https://github.com/electron/electron/pull/50666
X_Refsource_Misc x_refsource_misc
https://github.com/electron/electron/pull/50667
X_Refsource_Misc x_refsource_misc
https://github.com/electron/electron/pull/50668

Scores

CVSS v3 5.7
EPSS 0.0032
EPSS Percentile 24.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-116 CWE-94
Status published
Products (8)
electron/electron < 39.8.7
electron/electron >= 40.0.0-alpha.1, < 40.9.0
electron/electron >= 41.0.0-alpha.1, < 41.2.0
electron/electron >= 42.0.0-alpha.1, < 42.0.0-beta.1
npm/electron 0 - 39.8.7npm
npm/electron 40.0.0-alpha.1 - 40.9.0npm
npm/electron 41.0.0-alpha.1 - 41.2.0npm
npm/electron 42.0.0-alpha.1 - 42.0.0-beta.1npm
Published Aug 05, 2026
Tracked Since Aug 05, 2026