{"id":18898,"date":"2026-01-20T11:12:00","date_gmt":"2026-01-20T11:12:00","guid":{"rendered":"https:\/\/sekuritasit.com\/index.php\/2026\/01\/20\/cloudflare-fixes-acme-validation-bug-allowing-waf-bypass-to-origin-servers-infothehackernews-com-the-hacker-news\/"},"modified":"2026-01-20T11:12:00","modified_gmt":"2026-01-20T11:12:00","slug":"cloudflare-fixes-acme-validation-bug-allowing-waf-bypass-to-origin-servers-infothehackernews-com-the-hacker-news","status":"publish","type":"post","link":"https:\/\/sekuritasit.com\/index.php\/2026\/01\/20\/cloudflare-fixes-acme-validation-bug-allowing-waf-bypass-to-origin-servers-infothehackernews-com-the-hacker-news\/","title":{"rendered":"Cloudflare Fixes ACME Validation Bug Allowing WAF Bypass to Origin Servers info@thehackernews.com (The Hacker News)"},"content":{"rendered":"<p>Cloudflare has addressed a security vulnerability impacting its Automatic Certificate Management Environment (ACME) validation logic that made it possible to bypass security controls and access origin servers.\u00a0<br \/>\n&#8220;The vulnerability was rooted in how our edge network processed requests destined for the ACME HTTP-01 challenge path (\/.well-known\/acme-challenge\/*),&#8221; the web infrastructure<a href=\"https:\/\/thehackernews.com\/2026\/01\/cloudflare-fixes-acme-validation-bug.html\" target=\"_blank\" class=\"feedzy-rss-link-icon\">Read More<\/a>\u00a0<\/p>","protected":false},"excerpt":{"rendered":"<p>Cloudflare has addressed a security vulnerability impacting its Automatic Certificate Management Environment (ACME) validation logic that made it possible to bypass security controls and access origin servers.\u00a0 &#8220;The vulnerability was rooted in how our edge network processed requests destined for the ACME HTTP-01 challenge path (\/.well-known\/acme-challenge\/*),&#8221; the web infrastructureRead More\u00a0<\/p>\n","protected":false},"author":1,"featured_media":18899,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-18898","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Cloudflare has addressed a security vulnerability impacting its Automatic Certificate Management Environment (ACME) validation logic that made it possible to bypass security controls and access origin servers. &quot;The vulnerability was rooted in how our edge network processed requests destined for the ACME HTTP-01 challenge path 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12:05:06","updated":"2026-01-20 12:05:06","seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/sekuritasit.com\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/sekuritasit.com\/index.php\/category\/uncategorized\/\" title=\"Uncategorized\">Uncategorized<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tCloudflare Fixes ACME Validation Bug Allowing WAF Bypass to Origin Servers info@thehackernews.com (The Hacker News)\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/sekuritasit.com"},{"label":"Uncategorized","link":"https:\/\/sekuritasit.com\/index.php\/category\/uncategorized\/"},{"label":"Cloudflare Fixes ACME Validation Bug Allowing WAF Bypass to Origin Servers 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