{"id":6526,"date":"2026-09-30T11:43:03","date_gmt":"2026-09-30T11:43:03","guid":{"rendered":"https:\/\/netguide.io\/news\/2026\/09\/30\/thunderbird-156-fija-75-fallos-de-seguridad-y-expande-las-caracteristicas-de-oauth\/"},"modified":"2026-09-30T11:43:04","modified_gmt":"2026-09-30T11:43:04","slug":"thunderbird-156-fija-75-fallos-de-seguridad-y-expande-las-caracteristicas-de-oauth","status":"publish","type":"post","link":"https:\/\/netguide.io\/news\/es\/2026\/09\/30\/thunderbird-156-fija-75-fallos-de-seguridad-y-expande-las-caracteristicas-de-oauth\/","title":{"rendered":"Thunderbird 156 fija 75 fallos de seguridad y expande las caracter\u00edsticas de OAuth"},"content":{"rendered":"<div id=\"netgu-2281331622\" class=\"netgu-before-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"3494115342\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><p>Mozilla ha lanzado la versi\u00f3n 156 de su cliente de correo electr\u00f3nico de c\u00f3digo abierto Thunderbird. La actualizaci\u00f3n resuelve un total de 75 vulnerabilidades de seguridad al tiempo que introduce mejoras pr\u00e1cticas para la gesti\u00f3n de cuentas, m\u00e9todos de autenticaci\u00f3n modernos y encriptaci\u00f3n OpenPGP.<\/p>\n<h2>Patches de actualizaci\u00f3n de seguridad urgente 28 fallas de alta resoluci\u00f3n<\/h2>\n<p>La lista inusualmente larga de errores fijos se debe a un cambio de pol\u00edtica en Mozilla: los errores de seguridad de memoria descubiertos internamente ahora reciben identificadores de CVE individuales, al igual que en Firefox 156, en lugar de ser agrupados bajo una \u00fanica entrada colectiva como antes.<\/p><div id=\"netgu-1780861973\" class=\"netgu-content netgu-entity-placement\"><aside class=\"deals-top deals-top--compact\">\n\n\t\t\t<h3 class=\"deals-top__title\">Top-Deals<\/h3>\n\t\n\t\t\t<ul class=\"deals-top__list\">\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/moon-knight-digital-watch-face-fuer-wear-os-4\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/deal-27-150x150.png\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">MOON KNIGHT Digital Watch Face f\u00fcr Wear OS 4+<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">Gratis<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<s>0.89 \u20ac<\/s>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-discount\">-100%<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t55\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/train-sim-world-7-starter-pack-kostenlos-fuer-ps4-ps5-xbox-pc\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/capsule_616x353-11-150x150.jpg\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Train Sim World 7: Starter Pack kostenlos f\u00fcr PS4, PS5, Xbox, PC<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">Gratis<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t55\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/ml2u-watchfaces-fuer-wearos-im-google-play-store-2\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/2844734_1-150x150.webp\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">ML2U Watchfaces f\u00fcr WearOS im Google Play Store<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">Gratis<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<s>1.39 \u20ac<\/s>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-discount\">-100%<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t54\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/kostenloses-dlc-bundle-fuer-gears-of-war-e-day-liquid-death-bundle\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/2844571_1-150x150.webp\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Kostenloses DLC-Bundle f\u00fcr Gears of War E-Day \u2013 Liquid Death Bundle<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">Gratis<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t54\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/kostenlose-emote-im-clash-royale-store\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/share-image-clashroyale-150x150.jpg\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Kostenlose Emote im Clash Royale-Store<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">Gratis<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t54\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\n\t\t\t\t\t<p class=\"deals-top__more\">\n\t\t\t\t<a href=\"https:\/\/netguide.io\/deals\/\">Alle Deals ansehen \u2192<\/a>\n\t\t\t<\/p>\n\t\t\t<\/aside>\n<\/div>\n<p>De las 75 vulnerabilidades parcheadas, Mozilla tarifas 28 como &#8220;alta&#8221; gravedad. Los problemas afectan a los Codecs Web, el motor de gr\u00e1ficos CanvasWebGL, interfaces de accesibilidad y WebExtensions, entre otros. Varias vulnerabilidades podr\u00edan haber permitido a los atacantes escapar de cajas de seguridad en el subsistema gr\u00e1fico o <code>DOM Core &amp; HTML<\/code>, o ganar privilegios elevados en el sistema. Se aconseja a los usuarios que apliquen la actualizaci\u00f3n con prontitud.<\/p>\n<h2>M\u00e1s Flexibilidad con OAuth y OpenPGP<\/h2>\n<p>M\u00e1s all\u00e1 de los parches de seguridad, Thunderbird 156 ofrece actualizaciones funcionales para las cuentas de correo. Para IMAP y POP3 buzones de correo, los usuarios ahora pueden configurar configuraciones OAuth personalizadas incluyendo IDs de cliente y secretos de cliente. OAuth es un protocolo de autorizaci\u00f3n estandarizado que permite a las aplicaciones acceder a los servicios sin necesidad de entrada directa de contrase\u00f1a. Para cuentas de Yandex, Thunderbird ahora admite la autenticaci\u00f3n a trav\u00e9s de un navegador web externo, y la configuraci\u00f3n OAuth para cuentas de Microsoft Exchange est\u00e1 funcionando correctamente de nuevo.<\/p>\n<p>Al utilizar OpenPGP para la encriptaci\u00f3n de extremo a extremo, las propiedades clave ahora pueden producir datos de depuraci\u00f3n a la consola de error interno cuando sea necesario. Adem\u00e1s, las firmas creadas a trav\u00e9s de GnuPG externo ya no fallar\u00e1n si la clave principal en s\u00ed no est\u00e1 designada para firmar.<\/p>\n<h2>Nuevas pol\u00edticas institucionales y dispositivos de manejo de archivos<\/h2>\n<p>Para los administradores en entornos empresariales, Mozilla ha introducido tres nuevas pol\u00edticas:<\/p>\n<ul>\n<li><code>DisableUpdateSettings<\/code>: Evita modificaciones manuales a la configuraci\u00f3n de actualizaci\u00f3n de software.<\/li>\n<li><code>DisableDataCollectionSettings<\/code>: Protege las preferencias de telemetr\u00eda y recopilaci\u00f3n de datos de los cambios de usuario final.<\/li>\n<li><code>DisableMessageForwardingFilters<\/code>: Detiene a los usuarios de configurar el reenv\u00edo autom\u00e1tico a trav\u00e9s de filtros de mensaje.<\/li>\n<\/ul>\n<p>Numerosos bugs resuelve problemas de direcci\u00f3n con archivos adjuntos y carpetas de buz\u00f3n. Anteriormente, abrir archivos PDF podr\u00eda resultar en pesta\u00f1as en blanco, o los proyectos de PDF se interpretaron err\u00f3neamente como HTML. Tambi\u00e9n se han resuelto problemas al eliminar o desvincular todos los archivos adjuntos simult\u00e1neamente, as\u00ed como los fallos en los nombres de carpeta POP3 superiores a 55 caracteres.<\/p>\n<h2>Disponibilidad y C\u00f3mo Actualizar<\/h2>\n<p>Thunderbird 156 est\u00e1 disponible ahora. La actualizaci\u00f3n se distribuye autom\u00e1ticamente a trav\u00e9s del mecanismo de actualizaci\u00f3n incorporado, pero tambi\u00e9n se puede activar manualmente a trav\u00e9s del men\u00fa Ayuda bajo &#8220;Acerca de Thunderbird&#8221;. Para el despliegue de las empresas, se dispone de versiones de apoyo ampliadas (Thunderbird 153.3.0 ESR y Thunderbird 140.16 ESR) en paralelo.<\/p>\n<p><em>Quellen: <a href=\"https:\/\/www.computerbase.de\/news\/apps\/thunderbird-156-erweiterte-funktionen-rund-um-konten-oauth-und-openpgp.99427\/\" rel=\"nofollow noopener\" target=\"_blank\">Computerbase.de\/news<\/a><\/em><\/p>\n<div id=\"netgu-1334267486\" class=\"netgu-after-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"4559785002\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Mozilla ha lanzado la versi\u00f3n 156 de su cliente de correo electr\u00f3nico Thunderbird. La actualizaci\u00f3n elimina numerosas vulnerabilidades cr\u00edticas y reactiva la gesti\u00f3n de la cuenta.<\/p>\n","protected":false},"author":1,"featured_media":3165,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[],"tags":[4972,4968,4969,4970,4971,4973],"class_list":["post-6526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-actualizacion-de-seguridad","tag-email-es","tag-mozilla-es","tag-oauth-es","tag-openpgp-es","tag-thunderbird-es"],"brizy_media":[],"_links":{"self":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts\/6526","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/comments?post=6526"}],"version-history":[{"count":0,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts\/6526\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/media\/3165"}],"wp:attachment":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/media?parent=6526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/categories?post=6526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/tags?post=6526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}