CVE-2026-70611

MEDIUM

Electron: DevTools embedder handler executes arbitrary files via shell open

Title source: cna
STIX 2.1

Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.1, and 42.0.0-beta.3, the DevTools reveal in file manager action could launch the target file rather than reveal it. An attacker with a separate means of running script inside the DevTools frontend, such as a malicious DevTools extension, could use showItemInFolder handling to execute native code outside the sandbox when DevTools is opened for windows exposed to untrusted content or untrusted DevTools extensions. This issue is fixed in 39.8.9, 40.9.2, 41.2.1, and 42.0.0-beta.3.

References (13)

Core 13
Core References
X_Refsource_Misc x_refsource_misc
https://github.com/electron/electron/pull/50937
X_Refsource_Misc x_refsource_misc
https://github.com/electron/electron/pull/50938
X_Refsource_Misc x_refsource_misc
https://github.com/electron/electron/pull/51114
X_Refsource_Misc x_refsource_misc
https://github.com/electron/electron/pull/51115

Scores

CVSS v3 6.9
EPSS 0.0013
EPSS Percentile 3.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-78
Status published
Products (8)
electron/electron < 39.8.9
electron/electron >= 40.0.0-alpha.1, < 40.9.2
electron/electron >= 41.0.0-alpha.1, < 41.2.1
electron/electron >= 42.0.0-alpha.1, < 42.0.0-beta.3
npm/electron 0 - 39.8.9npm
npm/electron 40.0.0-alpha.1 - 40.9.2npm
npm/electron 41.0.0-alpha.1 - 41.2.1npm
npm/electron 42.0.0-alpha.1 - 42.0.0-beta.3npm
Published Aug 05, 2026
Tracked Since Aug 05, 2026