CVE-2026-34771

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Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, apps that register an asynchronous session.setPermissionRequestHandler() may be vulnerable to a use-after-free when handling fullscreen, pointer-lock, or keyboard-lock permission requests. If the requesting frame navigates or the window closes while the permission handler is pending, invoking the stored callback dereferences freed memory, which may lead to a crash or memory corruption. Apps that do not set a permission request handler, or whose handler responds synchronously, are not affected. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8."}, {"lang": "es", "value": "Electron es un framework para escribir aplicaciones de escritorio multiplataforma usando JavaScript, HTML y CSS. Antes de las versiones 38.8.6, 39.8.0, 40.7.0 y 41.0.0-beta.8, las aplicaciones que registran un session.setPermissionRequestHandler() as\u00edncrono pueden ser vulnerables a un uso despu\u00e9s de liberaci\u00f3n al gestionar solicitudes de permiso de pantalla completa, bloqueo de puntero o bloqueo de teclado. Si el marco solicitante navega o la ventana se cierra mientras el gestor de permisos est\u00e1 pendiente, invocar la devoluci\u00f3n de llamada almacenada desreferencia memoria liberada, lo que puede llevar a un fallo o corrupci\u00f3n de memoria. Las aplicaciones que no establecen un gestor de solicitudes de permiso, o cuyo gestor responde sincr\u00f3nicamente, no se ven afectadas. Este problema ha sido parcheado en las versiones 38.8.6, 39.8.0, 40.7.0 y 41.0.0-beta.8."}], "lastModified": "2026-07-24T22:10:00.140", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "9CE003A2-03CC-4355-AA17-2CBD204EC6C3", "versionEndExcluding": "38.8.6"}, {"criteria": "cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "642CA6B2-000A-480D-B062-80593D150787", "versionEndExcluding": "39.8.0", "versionStartIncluding": "39.0.0"}, {"criteria": "cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "E54036E0-1D1F-4265-A2F3-B9C1F88F65ED", "versionEndExcluding": "40.7.0", "versionStartIncluding": "40.0.0"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:alpha1:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "A20225D6-F435-4D09-962D-B162F521B6AD"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:alpha2:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "33712802-EB60-4E9A-83B8-9F2320B70CB4"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:alpha3:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "9D0A9142-54FE-47BB-9FEB-5E97528E28FE"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:alpha4:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "9E1D191F-DEAE-4DB3-9822-F31AF9FE3BAC"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:alpha5:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "45A8192F-3D2C-4987-9BBE-7ECC3F71965D"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:alpha6:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "EEA1A2E5-03DB-46CB-8427-7F31A8A7CE1C"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:beta1:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "B2DFCE75-BD3F-4537-B5B8-14097E262EA2"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:beta2:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "BC346E25-EA43-4615-8CDB-16D15D46E4FF"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:beta3:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "FA5B3C00-CAFC-4995-BF35-9920F3039E77"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:beta4:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "3672F3FB-6B5E-40FD-8A92-CB4DD6BC6A93"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:beta5:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "9EE4F8AE-21D2-4815-85B7-B7ECCC0D5059"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:beta6:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "D195760C-7DD9-4259-9042-EDE65AEAC1D6"}, {"criteria": "cpe:2.3:a:electronjs:electron:41.0.0:beta7:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "B370859F-24D3-4B25-B580-1A5B6DB94BFE"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}