SSRF in Electron
CVE-2026-70605
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.003 (19.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Electron — versions < 39.8.8, >= 40.0.0-alpha.1, < 40.9.0, >= 41.0.0-alpha.1, < 41.2.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-70605?
- CVE-2026-70605 is a medium-severity vulnerability in Electron, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.9/10. Published 2026-08-05.
- How severe is CVE-2026-70605?
- Medium severity. CVSS v3 base score is 5.9 out of 10.