{"id":39441,"date":"2026-02-06T13:33:59","date_gmt":"2026-02-06T13:33:59","guid":{"rendered":"http:\/\/localhost\/?p=39441"},"modified":"2026-02-06T13:33:59","modified_gmt":"2026-02-06T13:33:59","slug":"client-certificate-auth-has-an-open-redirect-via-host-header-injection-in-http-to-https-redirect","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=39441","title":{"rendered":"client-certificate-auth has an Open Redirect via Host Header Injection in HTTP-to-HTTPS redirect_CVE-2026-25651"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;client-certificate-auth is middleware for Node.js implementing client SSL certificate authentication\/authorization. Versions 0.2.1 and 0.3.0 of client-certificate-auth contain an open redirect vulnerability. The middleware unconditionally redirects HTTP requests to HTTPS using the unvalidated Host header, allowing an attacker to redirect users to arbitrary domains. 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Versions 0.2.1 and 0.3.0 of client-certificate-auth contain an open redirect vulnerability. The middleware unconditionally redirects&#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":[6,8,31,12,21,13,7,11,5],"class_list":["post-39441","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-61","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>client-certificate-auth has an Open Redirect via Host Header Injection in HTTP-to-HTTPS redirect_CVE-2026-25651 - 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=39441\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"client-certificate-auth has an Open Redirect via Host Header Injection in HTTP-to-HTTPS redirect_CVE-2026-25651 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;client-certificate-auth is middleware for Node.js implementing client SSL certificate authentication\/authorization. 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