{"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\/sv\/blog\/news\/obnovlenie-nginx-1-31-3-s-ustraneniem-rce-uyazvimosti","title":{"rendered":"Uppdatering av nginx 1.31.3 som \u00e5tg\u00e4rdar en RCE-s\u00e5rbarhet.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Uppdateringen av huvudversionen nginx 1.31.3 har genomf\u00f6rts, d\u00e4r utvecklingen av nya funktioner forts\u00e4tter, samt att en parallellt st\u00f6djad stabil version, nginx 1.30.4, har lanserats, som endast inneh\u00e5ller \u00e4ndringar relaterade till att \u00e5tg\u00e4rda allvarliga buggar och s\u00e5rbarheter. Tre s\u00e5rbarheter har \u00e5tg\u00e4rdats i uppdateringarna:    <\/p>\n<ul>\n<li class=\"l\"> CVE-2026-42533 \u2014 en buffert\u00f6mningsfel som uppst\u00e5r vid anv\u00e4ndning av direktivet \u00abmap\u00bb med regulj\u00e4ra uttryck genom substitut med oidentifierade (till exempel $1 och $2) eller namngivna variabler, under f\u00f6ruts\u00e4ttning att dessa variabler n\u00e4mns innan resultatvariabeln f\u00f6r map eller en variabel anv\u00e4nds som inte cachas. Denna s\u00e5rbarhet kan potentiellt leda till fj\u00e4rrkod-exekvering p\u00e5 <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sv\/server\/dts-dronten\/\" title=\"servern\" data-wpil-keyword-link=\"linked\">servern<\/a> genom att skicka en s\u00e4rskilt formaterad HTTP-f\u00f6rfr\u00e5gan. Problemet har tilldelats kritisk riskniv\u00e5 (9.2 av 10).\n<li class=\"l\"> CVE-2026-60005 \u2014 l\u00e4cka av oinitialiserat minne i arbetsprocessen vid anv\u00e4ndning av ngx_http_slice_module och angivande av regulj\u00e4ra uttryck med substitut genom oidentifierade variabler i directivet slice. S\u00e5rbarheten tilldelas en riskniv\u00e5 p\u00e5 8.8 av 10.\n<li class=\"l\"> CVE-2026-56434 \u2014 \u00e5tkomst till minne efter att det har frigjorts i modulen ngx_http_ssi_module, vilket uppst\u00e5r vid bearbetning av ett specialformat svar som returneras av en proxy-bakend. S\u00e5rbarheten kan leda till en f\u00f6r\u00e4ndring av inneh\u00e5llet i arbetsprocessens minne. Problemet tilldelas en riskniv\u00e5 p\u00e5 8.3 av 10.        <\/ul>\n<p>\u00c4ndringar som inte \u00e4r relaterade till s\u00e5rbarheter:  <\/p>\n<ul>\n<li class=\"l\">  I modulen ngx_http_xslt_filter_module har laddning av variabler i XML-dokumentet, vars v\u00e4rden laddas fr\u00e5n externa k\u00e4llor, inaktiverats. En direktiv \u00abxml_external_entities\u00bb har lagts till f\u00f6r att hantera laddning av externa komponenter som anges i DTD-blocket i det bearbetade XML-dokumentet.\n<li class=\"l\"> Direktiv har lagts till f\u00f6r \u00abproxy_socket_sndbuf\u00bb, \u00abproxy_socket_rcvbuf\u00bb, \u00abfastcgi_socket_sndbuf\u00bb, \u00abfastcgi_socket_rcvbuf\u00bb, \u00abgrpc_socket_sndbuf\u00bb, \u00abgrpc_socket_rcvbuf\u00bb, \u00abscgi_socket_sndbuf\u00bb, \u00abscgi_socket_rcvbuf\u00bb, \u00abuwsgi_socket_sndbuf\u00bb, \u00abuwsgi_socket_rcvbuf\u00bb, \u00abtunnel_socket_sndbuf\u00bb och \u00abtunnel_socket_rcvbuf\u00bb f\u00f6r att st\u00e4lla in storlek p\u00e5 s\u00e4ndningsbuffrar (SO_SND_BUF) och mottagningsbuffrar (SO_RCV_BUF).\n<li class=\"l\"> F\u00f6r arkitekturen LoongArch64 har implementerats en best\u00e4mning av blockstorlek (cache line), som anv\u00e4nds f\u00f6r \u00f6verf\u00f6ring av data mellan CPU:s cache och minnet.\n<li class=\"l\"> I modulerna ngx_http_proxy_v2_module och ngx_http_grpc_module har storleksbegr\u00e4nsningar f\u00f6r HTTP\/2-header och trailers implementerats med hj\u00e4lp av direktiven proxy_buffer_size och grpc_buffer_size.      <\/ul>\n<p>K\u00e4lla: <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 5.0.4 - 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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