{"id":27371,"date":"2025-11-19T10:37:34","date_gmt":"2025-11-19T10:37:34","guid":{"rendered":"https:\/\/99bitcoins.com\/fr\/?p=27371"},"modified":"2025-11-19T10:36:46","modified_gmt":"2025-11-19T10:36:46","slug":"cloudflare-panne-sites-crypto","status":"publish","type":"post","link":"https:\/\/99bitcoins.com\/fr\/actu\/cloudflare-panne-sites-crypto\/","title":{"rendered":"Bug Cloudflare : chaos dans l\u2019\u00e9cosyst\u00e8me crypto, 20% du web indisponible"},"content":{"rendered":"<p>Pendant quelques heures mardi, une partie d&rsquo;internet a litt\u00e9ralement d\u00e9croch\u00e9. Pas de m\u00e9ga cyberattaque ni de sc\u00e9nario hollywoodien, mais un <strong>bug interne chez Cloudflare<\/strong>, l&rsquo;un des piliers de l&rsquo;infrastructure web mondiale.<\/p>\n<h2>Un simple bug qui fait tomber un cinqui\u00e8me du web<\/h2>\n<p>Dans son rapport d&rsquo;incident, l&rsquo;entreprise explique qu&rsquo;un \u00ab feature file \u00bb utilis\u00e9 par son syst\u00e8me de gestion des bots a gonfl\u00e9 bien au-del\u00e0 de ce qui \u00e9tait pr\u00e9vu. Ce fichier alimente le <strong>module charg\u00e9 de distinguer<\/strong> trafic l\u00e9gitime et attaques automatis\u00e9es. En d\u00e9passant certaines limites, il a donc fait planter une partie du logiciel, ce qui a provoqu\u00e9 une panne en cha\u00eene.<\/p>\n<p>R\u00e9sultat imm\u00e9diat : environ <strong>20% des sites web <\/strong>se sont retrouv\u00e9es indisponibles. Au tout d\u00e9but, certains ing\u00e9nieurs soup\u00e7onnaient un gigantesque DDoS, ce qui n&rsquo;aurait pas \u00e9t\u00e9 surprenant vu l&rsquo;ampleur de l&rsquo;impact.<\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">I won\u2019t mince words: earlier today we failed our customers and the broader Internet when a problem in <a href=\"https:\/\/twitter.com\/Cloudflare?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">@Cloudflare<\/a>  network impacted large amounts of traffic that rely on us. The sites, businesses, and organizations that rely on Cloudflare depend on us being available and I\u2026<\/p>\n<p>&mdash; Dane Knecht \ud83e\uddad (@dok2001) <a href=\"https:\/\/twitter.com\/dok2001\/status\/1990791419653484646?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">November 18, 2025<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>Apr\u00e8s analyse, la piste de l&rsquo;attaque a \u00e9t\u00e9 \u00e9cart\u00e9e. Aucun signe d&rsquo;activit\u00e9 malveillante particuli\u00e8re, seulement un <strong>dysfonctionnement interne<\/strong> dans un composant cens\u00e9 justement renforcer la s\u00e9curit\u00e9.<\/p>\n<p>Cloudflare traite pr\u00e8s d&rsquo;un cinqui\u00e8me du trafic mondial et prot\u00e8ge une grosse part des sites, services et applications parmi les plus utilis\u00e9s. En pratique, quand ce type d&rsquo;acteur se bloque, c&rsquo;est <strong>tout un morceau d&rsquo;internet<\/strong> qui dispara\u00eet d&rsquo;un coup du point de vue des utilisateurs.<\/p>\n<h2>L&rsquo;\u00e9cosyst\u00e8me crypto pris dans la chute<\/h2>\n<p>Le secteur crypto a pris la panne de plein fouet. Des plateformes majeures comme <a href=\"https:\/\/99bitcoins.com\/fr\/actu\/33-minutes-panne-fait-vaciller-coinbase\/\">Coinbase<\/a>, Blockchain.com, <a class=\"general-link\" href=\"https:\/\/www.ledger.com\/fr\" target=\"_blank\" rel=\"noopener nofollow\">Ledger<\/a>, BitMEX, Toncoin, Arbiscan ou encore DefiLlama se sont retrouv\u00e9es <strong>inaccessibles ou tr\u00e8s fortement d\u00e9grad\u00e9es<\/strong> pendant l&rsquo;incident. Par ricochet, des services non crypto mais tout aussi structurants, comme X ou ChatGPT, ont \u00e9galement cess\u00e9 de r\u00e9pondre pour une partie des utilisateurs.<\/p>\n<p>Ce qui a l\u00e2ch\u00e9, ce sont donc les <strong>interfaces qui permettent au public<\/strong> et aux entreprises d&rsquo;y acc\u00e9der. Tableau de bord d&rsquo;exchange, explorateurs onchain, dashboards DeFi, portefeuilles connect\u00e9s \u00e0 des APIs : toute cette couche applicative repose sur des briques web classiques, souvent centralis\u00e9es, qui restent un maillon fragile.<\/p>\n<p>Pour beaucoup d&rsquo;utilisateurs, la fronti\u00e8re entre \u00ab\u00a0la crypto ne marche plus\u00a0\u00bb et \u00ab\u00a0le site est down\u00a0\u00bb est floue. L&rsquo;\u00e9pisode rappelle que la <strong>promesse de r\u00e9silience et de disponibilit\u00e9 permanente<\/strong> ne vaut que pour la couche protocolaire. D\u00e8s que l&rsquo;on remonte vers l&rsquo;interface utilisateur, la d\u00e9pendance \u00e0 quelques prestataires d&rsquo;infrastructure redevient tr\u00e8s visible.<\/p>\n<h2>Un rappel brutal des points de d\u00e9faillance centralis\u00e9s<\/h2>\n<p>Cette panne arrive dans un contexte o\u00f9 l&rsquo;on parle de plus en plus des <strong>angles morts de la \u00ab d\u00e9centralisation \u00bb<\/strong> proclam\u00e9e par l&rsquo;\u00e9cosyst\u00e8me. Un porte parole d&rsquo;EthStorage, qui d\u00e9veloppe des solutions pour utiliser Ethereum comme serveur web, a r\u00e9sum\u00e9 la situation en expliquant que des fournisseurs comme AWS ou Cloudflare cr\u00e9ent in\u00e9vitablement des points de d\u00e9faillance uniques.<\/p>\n<p>Les incidents chez <a href=\"https:\/\/99bitcoins.com\/fr\/actu\/panne-aws-coinbase-robinhood\/\">AWS le mois dernier<\/a> puis chez Cloudflare cette semaine servent d&rsquo;exemples concrets \u00e0 l&rsquo;appui de ce discours.<\/p>\n<p>Sur le papier, la plupart des projets de finance d\u00e9centralis\u00e9e promettent <strong>r\u00e9sistance \u00e0 la censure<\/strong> et absence d&rsquo;interm\u00e9diaires. Dans la pratique, beaucoup d&rsquo;entre eux s&rsquo;appuient sur des n\u0153uds h\u00e9berg\u00e9s, des relayers op\u00e9r\u00e9s par des tiers ou des services de cache centralis\u00e9s pour offrir une UX acceptable.<\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">Cloudflare outage reminder: Centralized services = single point of failure.<a href=\"https:\/\/t.co\/BxsX2z2mC1\" rel=\"nofollow\" target=\"_blank\">https:\/\/t.co\/BxsX2z2mC1<\/a> and <a href=\"https:\/\/t.co\/qC8L4e6116\" rel=\"nofollow\" target=\"_blank\">https:\/\/t.co\/qC8L4e6116<\/a> are running fine.<\/p>\n<p>Stay in control of your websites. Own your infrastructure<\/p>\n<p>&mdash; Urban Hacker (@realUrbanHacker) <a href=\"https:\/\/twitter.com\/realUrbanHacker\/status\/1990781029339255118?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">November 18, 2025<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>Tant que tout fonctionne, ces compromis restent invisibles. Le jour o\u00f9 un prestataire tombe, l&rsquo;<strong>illusion de continuit\u00e9 se brise<\/strong> imm\u00e9diatement.<\/p>\n<p>C&rsquo;est exactement le point soulev\u00e9 par le \u00ab\u00a0Trustless Manifesto\u00a0\u00bb publi\u00e9 r\u00e9cemment par Vitalik Buterin et plusieurs chercheurs de la Fondation Ethereum. Leur message est que la <strong>centralisation ne s&rsquo;installe pas<\/strong> en un seul choix spectaculaire, mais par une succession de petits arrangements avec la r\u00e9alit\u00e9. Un endpoint h\u00e9berg\u00e9 \u00ab\u00a0temporaire\u00a0\u00bb, un relayer g\u00e9r\u00e9 par une seule entit\u00e9, un service tiers pour gagner du temps.<\/p>\n<p>Chaque ajout cr\u00e9e donc un nouveau goulot, un futur <strong>point de pression technique ou politique<\/strong>.<\/p>\n<h2>Repenser la r\u00e9silience des apps crypto avant la prochaine panne<\/h2>\n<p>Pour les \u00e9quipes qui construisent des protocoles et des applications onchain, l&rsquo;incident Cloudflare a valeur de <strong>stress test grandeur nature<\/strong>. S&rsquo;appuyer sur un fournisseur centralis\u00e9 reste en effet rationnel \u00e0 court terme : temps de d\u00e9ploiement r\u00e9duit, co\u00fbts ma\u00eetris\u00e9s, outils standardis\u00e9s. Mais plus la base d&rsquo;utilisateurs s&rsquo;\u00e9largit, plus le co\u00fbt potentiel d&rsquo;une panne externe augmente, en r\u00e9putation comme en confiance.<\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\"><a href=\"https:\/\/twitter.com\/search?q=%24GROOM&amp;src=ctag&amp;ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">$GROOM<\/a> | <a href=\"https:\/\/twitter.com\/GhostRoomSol?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">@GhostRoomSol<\/a> <\/p>\n<p>Been accumulating Ghost room during the dips and even more reason to today due to the Cloudflare outage<\/p>\n<p>Privacy is the meta at the moment and offline payments being a huge development in the works for <a href=\"https:\/\/twitter.com\/search?q=%24GROOM&amp;src=ctag&amp;ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">$GROOM<\/a> \ud83d\udd10 <a href=\"https:\/\/t.co\/MEfOSi3AKr\" rel=\"nofollow\" target=\"_blank\">https:\/\/t.co\/MEfOSi3AKr<\/a>\u2026 <a href=\"https:\/\/t.co\/Fj80kkcWeW\" rel=\"nofollow\" target=\"_blank\">https:\/\/t.co\/Fj80kkcWeW<\/a> <a href=\"https:\/\/t.co\/K1QaYhK86u\" rel=\"nofollow\" target=\"_blank\">pic.twitter.com\/K1QaYhK86u<\/a><\/p>\n<p>&mdash; AJ Crypto (@AJ_cryptoo) <a href=\"https:\/\/twitter.com\/AJ_cryptoo\/status\/1990863070848299493?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">November 18, 2025<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>Pour l&rsquo;utilisateur lambda, cet \u00e9pisode restera probablement un simple \u00ab\u00a0bug internet de plus\u00a0\u00bb. Pour l&rsquo;\u00e9cosyst\u00e8me crypto, c&rsquo;est un <strong>rappel sec que la promesse<\/strong> de syst\u00e8mes sans interm\u00e9diaire ne sera jamais totalement cr\u00e9dible tant que la couche d&rsquo;acc\u00e8s repose sur quelques entreprises cl\u00e9s.<\/p>\n<p>Tant que ces maillons restent centralis\u00e9s, la <strong>robustesse r\u00e9elle des services<\/strong> d\u00e9pendra moins du consensus des n\u0153uds que de la sant\u00e9 d&rsquo;une poign\u00e9e de prestataires d&rsquo;infrastructure.<\/p>\n<hr>\n<p><strong>Sur le m\u00eame sujet :<\/strong><\/p>\n<ul>\n<li>Une panne Cloudflare r\u00e9v\u00e8le la plus grande faiblesse du Web3<\/li>\n<li><a href=\"https:\/\/99bitcoins.com\/fr\/actu\/33-minutes-panne-fait-vaciller-coinbase\/\">33 minutes sans Base : la panne qui fait vaciller Coinbase<\/a><\/li>\n<li><a href=\"https:\/\/99bitcoins.com\/fr\/actu\/panne-aws-coinbase-robinhood\/\">Coinbase et Robinhood victimes d&rsquo;un crash AWS massif<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Pendant quelques heures mardi, une partie d&rsquo;internet a litt\u00e9ralement d\u00e9croch\u00e9. Pas de m\u00e9ga cyberattaque ni de sc\u00e9nario hollywoodien, mais un bug interne chez Cloudflare, l&rsquo;un des piliers de l&rsquo;infrastructure web mondiale. Un simple bug qui fait tomber un cinqui\u00e8me du web Dans son rapport d&rsquo;incident, l&rsquo;entreprise explique qu&rsquo;un \u00ab feature file \u00bb utilis\u00e9 par son..<\/p>\n","protected":false},"author":135978,"featured_media":27373,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[8,6],"tags":[13],"coin":[15],"class_list":["post-27371","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bitcoin","category-actu","tag-bitcoin"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bug Cloudflare : chaos dans l\u2019\u00e9cosyst\u00e8me crypto, 20% du web indisponible<\/title>\n<meta name=\"description\" content=\"Un bug Cloudflare a mis 20% du web hors ligne, paralysant exchanges, dApps et trackers crypto 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