Vulnerability · Published Aug 5, 2026 · Assigned by GitHub_M

CVE-2026-70605Electron: HTTP redirect followed into local file loader

Medium 5.9

In plain English

A medium-severity server-side request forgery in electron from electron. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)0.3%top 75.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	electron	39.8.8	GHSA-v64r-4m7r-3mvq
npm	electron	40.9.1	GHSA-v64r-4m7r-3mvq
npm	electron	41.2.1	GHSA-v64r-4m7r-3mvq
npm	electron	42.0.0-beta.3	GHSA-v64r-4m7r-3mvq

Affected products (as reported)

Vendor	Product	Versions
electron	electron	< 39.8.8>= 40.0.0-alpha.1, < 40.9.0>= 41.0.0-alpha.1, < 41.2.1>= 42.0.0-alpha.1, < 42.0.0-beta.3

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

https://github.com/electron/electron/security/advisories/GHSA-v64r-4m7r-3mvq x_refsource_CONFIRM