{"id":42300,"date":"2026-04-12T01:59:27","date_gmt":"2026-04-12T01:59:27","guid":{"rendered":"http:\/\/localhost\/?p=42300"},"modified":"2026-04-12T01:59:27","modified_gmt":"2026-04-12T01:59:27","slug":"sveltekits-invalidated-redirect-in-handle-hook-causes-denial-of-service","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=42300","title":{"rendered":"SvelteKit&#8217;s invalidated redirect in handle hook causes Denial-of-Service_CVE-2026-40074"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, redirect, when called from inside the handle server hook with a location parameter containing characters that are invalid in a HTTP header, will cause an unhandled TypeError. This could result in DoS on some platforms, especially if the location passed to redirect contains unsanitized user input. 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Prior to 2.57.1, redirect, when called from inside the handle server hook&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,23,12,21,13,7,11,5],"class_list":["post-42300","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-63","tag-exploit","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SvelteKit&#039;s invalidated redirect in handle hook causes Denial-of-Service_CVE-2026-40074 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=42300\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SvelteKit&#039;s invalidated redirect in handle hook causes Denial-of-Service_CVE-2026-40074 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. 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