Answer in brief
CVE-2026-70601 records a High severity (CVSS 7.5) vulnerability in Electron: Context isolation bypass via Function.prototype.bind hijack. The current sources do not mark it as known exploited. The current feed maps electron/electron (generic), electron (npm), electron (npm), electron (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps electron/electron (generic), electron (npm), electron (npm), electron (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| electron/electrongeneric | < 39.8.9 || >= 40.0.0-alpha.1, < 40.9.2 || >= 41.0.0-alpha.1, < 41.2.2 || >= 42.0.0-alpha.1, < 42.0.0-beta.5 | Not reported |
| electronnpm | <39.8.9 | 39.8.9 |
| electronnpm | >=40.0.0-alpha.1,<40.9.2 | 40.9.2 |
| electronnpm | >=41.0.0-alpha.1,<41.2.2 | 41.2.2 |
| electronnpm | >=42.0.0-alpha.1,<42.0.0-beta.5 | 42.0.0-beta.5 |
Published upstream
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5, apps that expose Promise-returning functions to web content via contextBridge may be vulnerable to a context isolation bypass. Untrusted web content could obtain access to the isolated preload world and, through it, every capability the preload script has. In renderers without a sandbox, or with nodeIntegration enabled, this may escalate to Node.js access. Apps are affected if they expose Promise-returning functions via contextBridge, the standard pattern for wrapping ipcRenderer.invoke, in windows that load untrusted content. This issue is fixed in versions 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-70601 records a High severity (CVSS 7.5) vulnerability in Electron: Context isolation bypass via Function.prototype.bind hijack. The current sources do not mark it as known exploited. The current feed maps electron/electron (generic), electron (npm), electron (npm), electron (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps electron/electron (generic), electron (npm), electron (npm), electron (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| electron/electrongeneric | < 39.8.9 || >= 40.0.0-alpha.1, < 40.9.2 || >= 41.0.0-alpha.1, < 41.2.2 || >= 42.0.0-alpha.1, < 42.0.0-beta.5 | Not reported |
| electronnpm | <39.8.9 | 39.8.9 |
| electronnpm | >=40.0.0-alpha.1,<40.9.2 | 40.9.2 |
| electronnpm | >=41.0.0-alpha.1,<41.2.2 | 41.2.2 |
| electronnpm | >=42.0.0-alpha.1,<42.0.0-beta.5 | 42.0.0-beta.5 |
Published upstream
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5, apps that expose Promise-returning functions to web content via contextBridge may be vulnerable to a context isolation bypass. Untrusted web content could obtain access to the isolated preload world and, through it, every capability the preload script has. In renderers without a sandbox, or with nodeIntegration enabled, this may escalate to Node.js access. Apps are affected if they expose Promise-returning functions via contextBridge, the standard pattern for wrapping ipcRenderer.invoke, in windows that load untrusted content. This issue is fixed in versions 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5.
Quoted source text, attributed separately from HOL analysis.