CVE-2026-70605 Electron: HTTP redirect followed into local file loader
Remote attackers can redirect Electron network requests to local files, potentially disclosing sensitive local data if the application exposes the response body.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-70605?
CVE-2026-70605 is a medium-severity server-side request forgery vulnerability in Electronjs Electron, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, when following HTTP redirects, net.fetch() and net.request() did not restrict which schemes a redirect could target. A remote server could redirect a request to a local resource, and if the app returns or forwards the response body, local file contents could be disclosed. Apps are only affected if they make net requests to attacker-influenced URLs with redirects followed and expose the response body. This issue is fixed in versions 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.
Weakness: CWE-918
Which versions are affected by CVE-2026-70605?
8 open source packages ship an affected version, including electron. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
electron npm | All versions | 39.8.8 |
electron npm | All versions | 39.8.8 |
electron npm | From 40.0.0-alpha.1 | 40.9.1 |
electron npm | From 40.0.0-alpha.1 | 40.9.1 |
electron npm | From 41.0.0-alpha.1 | 41.2.1 |
electron npm | From 41.0.0-alpha.1 | 41.2.1 |
2 more packages
electron npm | From 42.0.0-alpha.1 | 42.0.0-beta.3 |
electron npm | From 42.0.0-alpha.1 | 42.0.0-beta.3 |
Products include Electronjs Electron.
How do I fix CVE-2026-70605?
Upgrade electron to a fixed version for your release line: 39.8.8, 40.9.1, 41.2.1 or 42.0.0-beta.3.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-70605 being exploited?
There is no known exploitation of CVE-2026-70605 in the wild and no public exploit code.
Other vulnerabilities in Electronjs Electron
- CVE-2017-16151 Chromium Remote Code Execution in electron
- CVE-2018-1000118 Electron protocol handler browser vulnerable to Command Injection
- CVE-2026-34780 Electron: Context Isolation bypass via contextBridge VideoFrame transfer
- CVE-2026-102676 Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions
- CVE-2026-102673 Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab
Sources
Also known as GHSA-v64r-4m7r-3mvq.