A empresa Google decidiu remover do mecanismo de navegador Chromium os componentes para suporte ao language de transforma\u00e7\u00e3o de documentos XML, XSLT. A raz\u00e3o mencionada \u00e9 o desejo de reduzir a superf\u00edcie de ataque ao interromper o uso da biblioteca libxslt. Na vis\u00e3o do Google, o suporte ao XSLT 1.0 cria riscos de seguran\u00e7a injustific\u00e1veis, uma vez que a biblioteca libxslt periodicamente revela vulnerabilidades (como CVE-2025-7425 e CVE-2022-22834) e enfrenta problemas de manuten\u00e7\u00e3o (de junho a setembro, a biblioteca ficou sem suporte e sem corre\u00e7\u00f5es para vulnerabilidades). Os projetos Firefox e WebKit tamb\u00e9m est\u00e3o considerando a possibilidade de remover o suporte ao XSLT. <\/p>\n
Vulnerabilidades em XSLT tornam-se uma ferramenta para ataques a navegadores, enquanto atualmente o suporte do cliente ao XSLT \u00e9 raramente requisitado e utilizado, e as tarefas de transforma\u00e7\u00e3o de dados em HTML podem ser resolvidas de forma mais segura por meio de APIs JavaScript, como DOMParser e Fetch. Segundo estat\u00edsticas do Google, a parcela de p\u00e1ginas web carregadas que utilizam XSLT \u00e9 de 0,02%, e a parcela de p\u00e1ginas com instru\u00e7\u00f5es de processamento XSLT \u00e9 estimada em 0,001%. <\/p>\n
Da mesma forma, foi decidido interromper o uso da biblioteca libxml2 no Chromium, que tamb\u00e9m apresenta vulnerabilidades regularmente e problemas de manuten\u00e7\u00e3o. A biblioteca libxml2 \u00e9 utilizada no Chromium para analisar, serializar e validar dados no formato XML, enquanto a classe XSLTProcessor e as instru\u00e7\u00f5es de processamento XSLT () s\u00e3o implementadas com base em libxslt. <\/p>\n
O suporte a recursos baseados em libxslt, como a API XSLTProcessor e instru\u00e7\u00f5es para an\u00e1lise de tabelas de estilo XML, ser\u00e1 interrompido na vers\u00e3o 155 do Chrome, prevista para 17 de novembro de 2026. Na vers\u00e3o 143 do Chrome, programada para 2 de dezembro de 2025, um aviso sobre a descontinua\u00e7\u00e3o da API XSLTProcessor ser\u00e1 adicionado ao console da web. Na vers\u00e3o 148 do Chrome (primavera de 2026), o suporte ao XSLT ser\u00e1 desativado por padr\u00e3o nas branches Canary, Dev e Beta. A funcionalidade para an\u00e1lise de XML ser\u00e1 mantida, mas ser\u00e1 transferida para uma nova biblioteca escrita em Rust, visando aumentar a seguran\u00e7a. <\/p>\n
Como substituto do suporte integrado ao XSLT no navegador, prop\u00f5e-se transferir o processamento de XSLT para o lado servidor<\/a> e enviar aos clientes o conte\u00fado HTML j\u00e1 formado. Manipuladores que utilizam API XML para interagir entre o cliente e servidor<\/a>, foi proposto substituir pelo uso do formato JSON e renderiza\u00e7\u00e3o atrav\u00e9s da convers\u00e3o de JSON para HTML\/CSS utilizando JavaScript. Entre as alternativas poss\u00edveis, tamb\u00e9m se destaca o uso de bibliotecas JavaScript como Saxonica, que implementa XSLT, uma camada de polyfill para garantir compatibilidade com c\u00f3digo mais antigo, oferecendo uma substitui\u00e7\u00e3o do XSLTProcessor baseada em WASM, e uma extens\u00e3o de navegador que insere automaticamente a camada de polyfill em documentos XML. \u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u043f\u0440\u0438\u043d\u044f\u043b\u0430 \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0443\u0434\u0430\u043b\u0438\u0442\u044c \u0438\u0437 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u043d\u043e\u0433\u043e \u0434\u0432\u0438\u0436\u043a\u0430 Chromium \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 \u0434\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u044f\u0437\u044b\u043a\u0430 \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u0438\u044f XML-\u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u043e\u0432 XSLT. \u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043f\u0440\u0438\u0447\u0438\u043d\u044b \u0443\u043f\u043e\u043c\u0438\u043d\u0430\u0435\u0442\u0441\u044f \u0436\u0435\u043b\u0430\u043d\u0438\u0435 \u0441\u043e\u043a\u0440\u0430\u0442\u0438\u0442\u044c \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u044c \u0430\u0442\u0430\u043a\u0438 \u0447\u0435\u0440\u0435\u0437 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 libxslt. \u041f\u043e \u043c\u043d\u0435\u043d\u0438\u044e Google \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 XSLT 1.0 \u0441\u043e\u0437\u0434\u0430\u0451\u0442 \u043d\u0435\u043e\u043f\u0440\u0430\u0432\u0434\u0430\u043d\u043d\u044b\u0435 \u0440\u0438\u0441\u043a\u0438 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0442\u0430\u043a \u043a\u0430\u043a \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 libxslt \u043f\u0435\u0440\u0438\u043e\u0434\u0438\u0447\u0435\u0441\u043a\u0438 \u0432\u044b\u044f\u0432\u043b\u044f\u044e\u0442 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, CVE-2025-7425 \u0438 CVE-2022-22834) \u0438 \u043e\u043d\u0430 \u0438\u043c\u0435\u0435\u0442 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b 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Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"