Electron: DevTools JavaScript Injection via Unsanitized Dock State Parameter
Summary
| CVE | CVE-2026-70609 |
|---|---|
| State | PUBLISHED |
| Assigner | GitHub_M |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-05 18:17:15 UTC |
| Updated | 2026-08-05 20:17:17 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 5.7 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
Problem Types: CWE-94 | CWE-116 | CWE-94 CWE-94: Improper Control of Generation of Code ('Code Injection') | CWE-116 CWE-116: Improper Encoding or Escaping of Output
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 5.7 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N |
| 3.1 | CNA | DECLARED | 5.7 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
HighUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
NoneCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Electron | Electron | affected < 39.8.7 | Not specified |
| CNA | Electron | Electron | affected >= 40.0.0-alpha.1, < 40.9.0 | Not specified |
| CNA | Electron | Electron | affected >= 41.0.0-alpha.1, < 41.2.0 | Not specified |
| CNA | Electron | Electron | affected >= 42.0.0-alpha.1, < 42.0.0-beta.1 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/electron/electron/releases/tag/v41.2.0 | [email protected] | github.com | |
| github.com/electron/electron/commit/969741f9f847c5c583f6bbc63ca22549dbd9... | [email protected] | github.com | |
| github.com/electron/electron/pull/50665 | [email protected] | github.com | |
| github.com/electron/electron/commit/04614eed17986bddc43eb509ec870424ee6a... | [email protected] | github.com | |
| github.com/electron/electron/pull/50667 | [email protected] | github.com | |
| github.com/electron/electron/commit/2046ae87731d80a7b535512ae19acb529e10... | [email protected] | github.com | |
| github.com/electron/electron/pull/50668 | [email protected] | github.com | |
| github.com/electron/electron/releases/tag/v39.8.7 | [email protected] | github.com | |
| github.com/electron/electron/commit/efc4d3c6b6f1c04f658ca0d9d2512dcfe78e... | [email protected] | github.com | |
| github.com/electron/electron/security/advisories/GHSA-4f78-qhmw-8j8m | [email protected] | github.com | |
| github.com/electron/electron/pull/50666 | [email protected] | github.com | |
| github.com/electron/electron/releases/tag/v42.0.0-beta.1 | [email protected] | github.com | |
| github.com/electron/electron/releases/tag/v40.9.0 | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.