Electron: HTTP redirect followed into local file loader
### Impact 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 (the default) and expose the response body. Apps that only request fixed, trusted URLs are not affected. ### Workarounds Set `redirect: 'error'` or `redirect: 'manual'` on requests to untrusted URLs and validate any redirect target before following it. ### Fixed Versions * `42.0.0-beta.3` * `41.2.1` * `40.9.0` * `39.8.8` ### For more information If you have any questions or comments about this advisory, email Electron at [security@electronjs.org](mailto:security@electronjs.org)
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-70605US | — | — | ||
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 redi… | ||||
references
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