{"id":182651,"date":"2026-07-16T04:53:25","date_gmt":"2026-07-16T02:53:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-nginx-1-31-3-s-ustraneniem-rce-uyazvimosti"},"modified":"2026-07-16T04:53:25","modified_gmt":"2026-07-16T02:53:25","slug":"obnovlenie-nginx-1-31-3-s-ustraneniem-rce-uyazvimosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/obnovlenie-nginx-1-31-3-s-ustraneniem-rce-uyazvimosti","title":{"rendered":"Atualiza\u00e7\u00e3o do nginx 1.31.3 corrigindo vulnerabilidade RCE","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Foi lan\u00e7ado o release da ramifica\u00e7\u00e3o principal do nginx 1.31.3, que continua a desenvolver novas funcionalidades, assim como foi lan\u00e7ada uma ramifica\u00e7\u00e3o est\u00e1vel paralela do nginx 1.30.4, na qual s\u00e3o feitas apenas altera\u00e7\u00f5es relacionadas \u00e0 corre\u00e7\u00e3o de erros graves e vulnerabilidades. Nos updates, foram corrigidas 3 vulnerabilidades:    <\/p>\n<ul>\n<li class=\"l\"> CVE-2026-42533 \u2014 estouro de buffer que se manifesta ao usar a diretiva \"map\" com verifica\u00e7\u00f5es atrav\u00e9s de express\u00f5es regulares com substitui\u00e7\u00f5es usando vari\u00e1veis n\u00e3o nomeadas (por exemplo, $1 e $2) ou vari\u00e1veis nomeadas, desde que essas vari\u00e1veis sejam mencionadas antes da vari\u00e1vel de resultado do map ou que uma vari\u00e1vel n\u00e3o cacheada tenha sido usada. A vulnerabilidade pode potencialmente levar \u00e0 execu\u00e7\u00e3o remota de c\u00f3digo em <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/dts-dronten\/\" title=\"servidor\" data-wpil-keyword-link=\"linked\">servidor<\/a> enviando uma solicita\u00e7\u00e3o HTTP especialmente formatada. O problema recebeu um n\u00edvel cr\u00edtico de gravidade (9.2 de 10).\n<li class=\"l\"> CVE-2026-60005 \u2014 vazamento de mem\u00f3ria n\u00e3o inicializada do processo de trabalho ao usar o m\u00f3dulo ngx_http_slice_module e indicar na diretiva slice express\u00f5es regulares com substitui\u00e7\u00f5es usando vari\u00e1veis n\u00e3o nomeadas. A vulnerabilidade foi classificada com um n\u00edvel de gravidade de 8.8 em 10.\n<li class=\"l\"> CVE-2026-56434 \u2014 acesso \u00e0 mem\u00f3ria ap\u00f3s sua libera\u00e7\u00e3o no m\u00f3dulo ngx_http_ssi_module, que ocorre ao processar uma resposta formatada especificamente retornada por um backend proxy. A vulnerabilidade pode levar \u00e0 modifica\u00e7\u00e3o do conte\u00fado da mem\u00f3ria do processo de trabalho. O problema foi classificado com um n\u00edvel de gravidade de 8.3 em 10.        <\/ul>\n<p>Mudan\u00e7as n\u00e3o relacionadas a vulnerabilidades:  <\/p>\n<ul>\n<li class=\"l\">  No m\u00f3dulo ngx_http_xslt_filter_module, foi desativado o carregamento de vari\u00e1veis no documento XML, cujos valores s\u00e3o carregados de fontes externas. Adicionada a diretiva \"xml_external_entities\" para controlar o carregamento de componentes externos mencionados no bloco DTD do documento XML processado.\n<li class=\"l\"> Foram adicionadas as diretivas \"proxy_socket_sndbuf\", \"proxy_socket_rcvbuf\", \"fastcgi_socket_sndbuf\", \"fastcgi_socket_rcvbuf\", \"grpc_socket_sndbuf\", \"grpc_socket_rcvbuf\", \"scgi_socket_sndbuf\", \"scgi_socket_rcvbuf\", \"uwsgi_socket_sndbuf\", \"uwsgi_socket_rcvbuf\", \"tunnel_socket_sndbuf\" e \"tunnel_socket_rcvbuf\" para definir o tamanho dos buffers de envio (SO_SNDBUF) e recebimento (SO_RCVBUF).\n<li class=\"l\"> Para a arquitetura LoongArch64, foi implementada a defini\u00e7\u00e3o do tamanho do bloco (cache line) usado para a transfer\u00eancia de dados entre o cache da CPU e a mem\u00f3ria.\n<li class=\"l\"> Nos m\u00f3dulos ngx_http_proxy_v2_module e ngx_http_grpc_module, foi implementada a limita\u00e7\u00e3o do tamanho dos cabe\u00e7alhos e trailers nas respostas HTTP\/2 usando as diretivas proxy_buffer_size e grpc_buffer_size.      <\/ul>\n<p>Fonte: <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65910\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 nginx 1.31.3, \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u043d\u043e\u0432\u044b\u0445 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 nginx 1.30.4, \u0432 \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u0432\u043d\u043e\u0441\u044f\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0441\u0435\u0440\u044c\u0451\u0437\u043d\u044b\u0445 \u043e\u0448\u0438\u0431\u043e\u043a \u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u0412 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e 3 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2026-42533 &#8212; \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0435\u0435\u0441\u044f \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u0432 \u0434\u0438\u0440\u0435\u043a\u0442\u0438\u0432\u0435 &#171;map&#187; \u043f\u0440\u043e\u0432\u0435\u0440\u043e\u043a \u0447\u0435\u0440\u0435\u0437 \u0440\u0435\u0433\u0443\u043b\u044f\u0440\u043d\u044b\u0435 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f \u0441 \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430\u043c\u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182651","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 nginx 1.31.3, \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u043d\u043e\u0432\u044b\u0445 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