{"id":182227,"date":"2026-06-18T08:48:05","date_gmt":"2026-06-18T06:48:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-nginx-1-31-2-s-ustraneniem-uyazvimostej-ekspluatiruemyh-cherez-http-3-http2-i-grpc"},"modified":"2026-06-18T08:48:05","modified_gmt":"2026-06-18T06:48:05","slug":"obnovlenie-nginx-1-31-2-s-ustraneniem-uyazvimostej-ekspluatiruemyh-cherez-http-3-http2-i-grpc","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/news\/obnovlenie-nginx-1-31-2-s-ustraneniem-uyazvimostej-ekspluatiruemyh-cherez-http-3-http2-i-grpc","title":{"rendered":"Update of nginx 1.31.2 addressing vulnerabilities exploited via HTTP\/3, HTTP2, and gRPC","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>The release of the main branch nginx 1.31.2 has been formed, continuing the development of new features, as well as the release of the parallelly maintained stable branch nginx 1.30.3, which only includes changes related to fixing critical bugs and vulnerabilities. The updates addressed 3 vulnerabilities:<\/p>\n<ul>\n<li class=\"l\"> CVE-2026-42530 \u2014 a use-after-free vulnerability in the HTTP\/3 protocol implementation. This issue has been assigned a critical severity level (9.2 out of 10), allowing for potential remote code execution with the worker process's privileges when handling a specially crafted QUIC protocol session.\n<li class=\"l\"> CVE-2026-42055 \u2014 a buffer overflow in the ngx_http_proxy_v2_module and ngx_http_grpc_module, manifesting during the proxying of specially crafted HTTP\/2 requests or gRPC backend requests. This issue has been assigned a critical severity level (9.2 out of 10), permitting remote code execution. The vulnerability occurs in configurations with the setting<br \/>\n\u2018ignore_invalid_headers off;\u2019 and a high value for \u2018large_client_header_buffers.\u2019<\/p>\n<li class=\"l\"> CVE-2026-48142 \u2014 reading from outside the allocated buffer when processing specially crafted requests, leading to text re-encoding in UTF-8 format using the ngx_http_charset_module. This vulnerability arises in configurations with the \u2018charset_map\u2019 directive when the location block includes \u2018source_charset utf-8\u2019 and \u2018charset other_encoding.\u2019 This issue has been assigned a medium severity level (6.3 out of 10), allowing for potential leakage of the worker process's memory contents.\n<\/ul>\n<p>In addition to fixing vulnerabilities in version nginx 1.31.2, a new variable $ssl_sigalgs has been added, which contains the signature algorithms claimed by the client in the ClientHello message during the TLS connection negotiation. The algorithm used to form the identifier passed through the variable $request_id is SipHash-2-4.<br \/>\n<br \/>Source: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65712\">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 1.31.2, \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 1.30.3, \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-2026-42530 &#8212; \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0435 \u043a \u0443\u0436\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0451\u043d\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 (use-after-free) \u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 HTTP\/3. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0435 \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 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182227","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 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