{"id":184237,"date":"2026-11-12T11:41:47","date_gmt":"2026-11-12T09:41:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/uyazvimost-v-apache-httpd-zkspluatiruemaya-dlya-udalyonnogo-vypolneniya-koda-cherez-http-2"},"modified":"2026-11-12T11:41:52","modified_gmt":"2026-11-12T09:41:52","slug":"apache-httpd-vulnerability-exploited-for-remote-code-execution-via-http-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/apache-httpd-vulnerability-exploited-for-remote-code-execution-via-http-2","title":{"rendered":"En s\u00e5rbarhet i Apache httpd som utnyttjas f\u00f6r fj\u00e4rrkodexekvering via HTTP\/2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Apache HTTP-server 2.4.71 har sl\u00e4ppt en uppdatering som \u00e5tg\u00e4rdar en s\u00e5rbarhet (CVE-2026-119618) i modulen mod_http2 som har bed\u00f6mts som kritisk. S\u00e5rbarheten m\u00f6jligg\u00f6r att angripare kan k\u00f6ra egen kod p\u00e5 servern genom att skicka en s\u00e4rskilt formulerad beg\u00e4ran via HTTP\/2-protokollet. S\u00e5rbarheten p\u00e5verkar versioner av Apache httpd fr\u00e5n och med 2.4.55 och ber\u00f6r \u00e4ven den frist\u00e5ende modulen mod_h2, som distribueras via GitHub. Status f\u00f6r s\u00e5rbarhetsfixar i distributionerna kan bed\u00f6mas p\u00e5 f\u00f6ljande sidor: Debian, Ubuntu, SUSE, RHEL, Gentoo, Arch.
\nFedora, FreeBSD.<\/p>\n

Problemet orsakas av en kappl\u00f6pningstillst\u00e5nd vid samtidigt anrop av funktionen assign_headers() fr\u00e5n olika tr\u00e5dar, vilket uppst\u00e5r p\u00e5 grund av att funktionen hanterar en gemensam struktur (req->headers) f\u00f6r alla tr\u00e5dar, ist\u00e4llet f\u00f6r en separat kopia f\u00f6r varje tr\u00e5d (r->headers_in). Vid framg\u00e5ngsrik utnyttjande kan en angripare \u00e5stadkomma minnes\u00e4ndringar utanf\u00f6r den allokerade bufferten. S\u00e5rbarheten uppt\u00e4cktes ungef\u00e4r samtidigt av forskare fr\u00e5n f\u00f6retagen Anthropic och Google. Utnyttjandet har \u00e4nnu inte offentliggjorts. Som en tillf\u00e4llig l\u00f6sning f\u00f6r att blockera s\u00e5rbarheten r\u00e4cker det med att st\u00e4nga av hanteringen av anslutningar via HTTP\/2 i konfigurationsfilen httpd.conf med direktivet 'Protocols http\/1.1'. <\/p>\n

Enligt Netcrafts septemberrapport finns det cirka 170 miljoner webbplatser (11.56%) som k\u00f6rs p\u00e5 Apache httpd. Det rapporteras inte hur m\u00e5nga av dem som anv\u00e4nder HTTP\/2.
\n
K\u00e4lla: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 HTTP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Apache 2.4.71, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2026-119618) \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 mod_http2, \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u0441\u0432\u043e\u0439 \u043a\u043e\u0434 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u043f\u0440\u0438 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0443 HTTP\/2. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0440\u0441\u0438\u0439 Apache httpd 2.4.55 \u0438 \u0442\u0430\u043a\u0436\u0435 \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u0435\u0442 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u043c\u043e\u0434\u0443\u043b\u044c mod_h2, \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u043c\u044b\u0439 \u0447\u0435\u0440\u0435\u0437 GitHub. \u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 […]<\/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-184237","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47S\u00e5rbarhet i Apache httpd, utnyttjad f\u00f6r avl\u00e4gsen kodk\u00f6rning via HTTP\/2 | ProHoster","description":"Apache HTTP-server 2.4.71 har sl\u00e4ppt en uppdatering som \u00e5tg\u00e4rdar en s\u00e5rbarhet (CVE-2026-119618) i modulen mod_http2 som har bed\u00f6mts som 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\u0447\u0435\u0440\u0435\u0437 HTTP\/2 | ProHoster","og:description":"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 HTTP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Apache 2.4.71, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2026-119618) \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 mod_http2, \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c 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