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CVE-2026-70609

Electron: DevTools JavaScript Injection via Unsanitized Dock State Parameter

Published: Aug 5, 2026Updated: Aug 6, 2026 Sources: CVE List NVDCWE-94
5.7MEDIUM
NVD MITRE
EPSS Score
0.4%
Top 66.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:HUI:RS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-94CWE-116

Affected Products

electron
package-ecosystemaka electron-builder, packager
electronLibrary
OSS Libraries / generic-library

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

https://github.com/electron/electron/security/advisories/GHSA-4f78-qhmw-8j8m
github.com
https://github.com/electron/electron/pull/50665
github.com
https://github.com/electron/electron/pull/50666
github.com
and 10 more references View all →

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