{"id":4726,"date":"2026-05-25T09:12:07","date_gmt":"2026-05-25T07:12:07","guid":{"rendered":"https:\/\/computershop.eu\/blog\/?p=4721"},"modified":"2026-05-25T09:19:06","modified_gmt":"2026-05-25T07:19:06","slug":"vulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome","status":"publish","type":"post","link":"https:\/\/computershop.eu\/blog\/es\/vulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome","title":{"rendered":"Vulnerabilidad de Chromium: riesgo mayor para los usuarios de Chrome"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n<p class=\"wp-block-paragraph\">Los usuarios de navegadores basados en Chromium, incluidos Chrome, Edge, Brave u Opera, se enfrentan a un nuevo problema de seguridad que plantea serias dudas sobre la protecci\u00f3n de datos y la seguridad de la navegaci\u00f3n en l\u00ednea. Una vulnerabilidad de Chromium recientemente reavivada podr\u00eda permitir a sitios maliciosos explotar el navegador sin descargas, sin notificaciones y, en algunos casos, sin ninguna interacci\u00f3n por parte del usuario.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfPor qu\u00e9 es tan peligrosa esta vulnerabilidad de Chromium?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El problema afecta al componente&nbsp;<strong>Browser Fetch<\/strong>, una funcionalidad introducida para permitir que los navegadores contin\u00faen las descargas en segundo plano incluso despu\u00e9s de cerrar una pesta\u00f1a. Inicialmente, el objetivo era leg\u00edtimo: mejorar la experiencia del usuario en el caso de archivos grandes o contenido multimedia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No obstante, la investigadora en seguridad cibern\u00e9tica Lyra Rebane ha demostrado que esta funci\u00f3n puede ser explotada para crear conexiones persistentes entre el navegador y servidores externos controlados por atacantes. Pr\u00e1cticamente, un sitio aparentemente ordinario puede mantener procesos activos en segundo plano y transformar el navegador en un punto de acceso para actividades maliciosas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfC\u00f3mo funciona el ataque?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Todo sucede de manera muy simple. El usuario accede a un sitio web aparentemente leg\u00edtimo: puede ser un art\u00edculo, un resultado de motor de b\u00fasqueda o incluso una p\u00e1gina compartida en redes sociales.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En segundo plano, el navegador establece una conexi\u00f3n persistente que contin\u00faa ejecut\u00e1ndose incluso despu\u00e9s de abandonar la p\u00e1gina. En ciertas implementaciones de Chromium, esta conexi\u00f3n puede sobrevivir incluso despu\u00e9s de reiniciar el navegador o el dispositivo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>As\u00ed, el navegador comprometido puede ser utilizado para:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>intermediaci\u00f3n an\u00f3nima de tr\u00e1fico (proxy);<\/li>\n\n\n\n<li>participaci\u00f3n en ataques DDoS;<\/li>\n\n\n\n<li>redirigir conexiones a otros servidores;<\/li>\n\n\n\n<li>monitorear algunas actividades limitadas de navegaci\u00f3n.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Los expertos comparan el efecto con un \u201cmini-botnet\u201d construido directamente en el navegador.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Una vulnerabilidad de Chromium conocida desde 2022<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Seg\u00fan la informaci\u00f3n publicada, la vulnerabilidad fue reportada a Google desde 2022. Adem\u00e1s, habr\u00eda sido clasificada internamente como un problema grave, pero la correcci\u00f3n a\u00fan no ha llegado a los usuarios, y el c\u00f3digo demostrativo (proof-of-concept) se ha vuelto p\u00fablico.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El impacto se amplifica por el hecho de que&nbsp;<strong>Chromium es la base de la mayor\u00eda de los navegadores modernos<\/strong>. No solo se ve afectado Google Chrome, sino todo el ecosistema construido sobre este proyecto de c\u00f3digo abierto.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Los navegadores que se han mencionado como potencialmente afectados incluyen:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Google Chrome<\/li>\n\n\n\n<li>Microsoft Edge<\/li>\n\n\n\n<li>Brave<\/li>\n\n\n\n<li>Opera<\/li>\n\n\n\n<li>Vivaldi<\/li>\n\n\n\n<li>Arc Browser<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Los navegadores&nbsp;<strong>Firefox<\/strong>&nbsp;y&nbsp;<strong>Safari<\/strong>&nbsp;no utilizan el mecanismo Browser Fetch, por lo que no est\u00e1n afectados por este problema espec\u00edfico.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfC\u00f3mo puedes protegerte hasta que aparezca una actualizaci\u00f3n?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Actualmente no hay una soluci\u00f3n oficial disponible para todos los usuarios, pero hay algunas medidas preventivas recomendadas:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Evita sitios desconocidos<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Acceder a p\u00e1ginas dudosas o a enlaces provenientes de fuentes inseguras aumenta el riesgo de explotaci\u00f3n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Monitorea el comportamiento del navegador<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ventanas inesperadas relacionadas con descargas o notificaciones inusuales pueden representar indicios de un comportamiento sospechoso.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Actualiza el navegador constantemente<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aunque el parche a\u00fan no se haya lanzado, las actualizaciones regulares siguen siendo esenciales para remediar otras vulnerabilidades cr\u00edticas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Usa soluciones adicionales de seguridad<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Las extensiones de protecci\u00f3n, los filtros anti-malware y la monitorizaci\u00f3n del tr\u00e1fico pueden reducir los riesgos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Impacto sobre los usuarios<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Esta vulnerabilidad de Chromium destaca una vez m\u00e1s cu\u00e1n importante es <a href=\"https:\/\/computershop.eu\/blog\/es\/extension-de-chrome-comprometida-mas-de-1-millon-de-usuarios-afectados\" target=\"_blank\" rel=\"noreferrer noopener\">la seguridad de los navegadores<\/a> modernos. En un contexto en el que la mayor\u00eda de los usuarios pasan horas enteras en l\u00ednea, simplemente acceder a una p\u00e1gina web no deber\u00eda representar un riesgo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hasta que aparezca una soluci\u00f3n oficial, la vigilancia de los usuarios sigue siendo el m\u00e9todo m\u00e1s eficaz de protecci\u00f3n contra ataques que pueden ejecutarse casi de forma invisible en segundo plano.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fuente:&nbsp;<a href=\"https:\/\/www.androidauthority.com\/chromium-browser-vulnerability-3669581\" target=\"_blank\" rel=\"noreferrer noopener\">androidauthority.com<\/a><\/p>\n\t<div class=\"quickshare-container\">\r\n\t<ul class=\"quickshare-genericons monochrome quickshare-effect-expand\">\r\n\t\t<li class=\"quickshare-share\">Share:<\/li> \r\n\t\t<li><a href=\"https:\/\/facebook.com\/sharer.php?u=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fes%2Fvulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome&amp;t=Vulnerabilidad+de+Chromium%3A+riesgo+mayor+para+los+usuarios+de+Chrome+<+Refurbished+Computers+-+ComputerShop.EU\" target=\"_blank\" title=\"Share on Facebook\"><span class=\"quickshare-facebook\">Facebook<\/span><\/a><\/li>\t\t<li><a href=\"https:\/\/twitter.com\/intent\/tweet?url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fes%2Fvulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome&amp;text=Vulnerabilidad+de+Chromium%3A+riesgo+mayor+para+los+usuarios+de+Chrome+<+Refurbished+Computers+-+ComputerShop.EU\" target=\"_blank\" title=\"Share on Twitter\"><span class=\"quickshare-twitter\">Twitter<\/span><\/a><\/li>\t\t<li><a href=\"http:\/\/pinterest.com\/pin\/create\/button\/?url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fes%2Fvulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome&amp;media=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fwp-content%2Fuploads%2F2026%2F05%2FChromium-vulnerability-300x169.png&amp;description=Los+usuarios+de+navegadores+basados+en+Chromium%2C+incluidos+Chrome%2C+Edge%2C+Brave+u+Opera%2C+se+enfrentan+a+un+nuevo+problema+de+seguridad+que+plantea+serias+dudas+sobre+la+protecci%C3%B3n+de+datos+y+la+seguridad+de+la+navegaci%C3%B3n+en+l%C3%ADnea.+Una+vulnerabilidad%26hellip%3B\" target=\"_blank\" title=\"Share on Pinterest\"><span class=\"quickshare-pinterest\">Pinterest<\/span><\/a><\/li>\t\t<li><a href=\"http:\/\/linkedin.com\/shareArticle?mini=true&amp;url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fes%2Fvulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome&amp;title=Vulnerabilidad+de+Chromium%3A+riesgo+mayor+para+los+usuarios+de+Chrome&amp;source=Refurbished+Computers+-+ComputerShop.EU&amp;summary=Los+usuarios+de+navegadores+basados+en+Chromium%2C+incluidos+Chrome%2C+Edge%2C+Brave+u+Opera%2C+se+enfrentan+a+un+nuevo+problema+de+seguridad+que+plantea+serias+dudas+sobre+la+protecci%C3%B3n+de+datos+y+la+seguridad+de+la+navegaci%C3%B3n+en+l%C3%ADnea.+Una+vulnerabilidad%26hellip%3B\" title=\"Share on Linkedin\" target=\"_blank\"><span class=\"quickshare-linkedin\">Linkedin<\/span><\/a><\/li>\t\t<li><a href=\"https:\/\/plus.google.com\/share?url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fes%2Fvulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome\" target=\"_blank\" title=\"Share on Google+\"><span class=\"quickshare-googleplus\">Google+<\/span><\/a><\/li>\t\t\t\t\t\t\t\t<li><a href=\"mailto:?subject=Refurbished+Computers+-+ComputerShop.EU:+Vulnerabilidad+de+Chromium%3A+riesgo+mayor+para+los+usuarios+de+Chrome&amp;body=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fes%2Fvulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome\" target=\"_blank\" title=\"Share via Email\"><span class=\"quickshare-email\">Email<\/span><\/a><\/li>\t<\/ul>\r\n\t<\/div>\r\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Los usuarios de navegadores basados en Chromium, incluidos Chrome, Edge, Brave u Opera, se enfrentan a un nuevo problema de seguridad que plantea serias dudas sobre la protecci\u00f3n de datos y la seguridad de la navegaci\u00f3n en l\u00ednea. Una vulnerabilidad &hellip; <a href=\"https:\/\/computershop.eu\/blog\/es\/vulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":4724,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[98],"tags":[17803,17806,8589,8727,17733,17809,7255,13525,8985,6381,17736],"class_list":["post-4726","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-browser-fetch-es","tag-edge-es","tag-google-chrome-es","tag-navegador-de-internet","tag-navegador-vivaldi","tag-opera-es","tag-seguridad-cibernetica","tag-seguridad-del-navegador","tag-seguridad-en-linea","tag-valiente","tag-vulnerabilidad-de-chromium"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vulnerabilidad de Chromium: riesgo mayor para los usuarios de Chrome - Refurbished Computers - ComputerShop.EU<\/title>\n<meta name=\"description\" content=\"Una conocida vulnerabilidad de Chromium afecta a los usuarios de los populares navegadores Chrome, Edge, Brave, Opera y Vivaldi. \u00bfQu\u00e9 necesitas saber?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/computershop.eu\/blog\/es\/vulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vulnerabilidad de Chromium: riesgo mayor para los usuarios de Chrome - Refurbished Computers - ComputerShop.EU\" \/>\n<meta property=\"og:description\" content=\"Una conocida vulnerabilidad de Chromium afecta a los usuarios de los populares navegadores Chrome, Edge, Brave, Opera y Vivaldi. \u00bfQu\u00e9 necesitas saber?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/computershop.eu\/blog\/es\/vulnerabilidad-de-chromium-riesgo-mayor-para-los-usuarios-de-chrome\" \/>\n<meta property=\"og:site_name\" content=\"Refurbished Computers - 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