{"id":"CVE-2026-70605","aliases":["GHSA-v64r-4m7r-3mvq"],"url":"https://o3.security/vulnerability/CVE-2026-70605","summary":"Electron: HTTP redirect followed into local file loader","details":"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.","published":"2026-08-05T16:04:12.428Z","modified":"2026-09-10T08:16:15.078759Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.00197,"percentile":0.0981,"asOf":"2026-08-18"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"electron","fixedVersion":"39.8.8"},{"ecosystem":"npm","name":"electron","fixedVersion":"40.9.1"},{"ecosystem":"npm","name":"electron","fixedVersion":"41.2.1"},{"ecosystem":"npm","name":"electron","fixedVersion":"42.0.0-beta.3"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70605.json"},{"type":"ADVISORY","url":"https://github.com/electron/electron/security/advisories/GHSA-v64r-4m7r-3mvq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70605"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T08:16:15.078759Z"}}