{"id":2443,"date":"2026-04-25T23:16:32","date_gmt":"2026-04-25T23:16:32","guid":{"rendered":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/"},"modified":"2026-04-25T23:16:32","modified_gmt":"2026-04-25T23:16:32","slug":"reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite","status":"publish","type":"post","link":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/","title":{"rendered":"R\u00e9organisation de la cha\u00eene Litecoin efface trois heures apr\u00e8s une exploitation de la couche de confidentialit\u00e9"},"content":{"rendered":"<p><b><i>La faille MWEB expose Litecoin au risque de double d\u00e9pense, for\u00e7ant une r\u00e9organisation tandis que la r\u00e9action du march\u00e9 reste limit\u00e9e.<\/i><\/b><\/p>\n<p><span style=\"font-weight: 400\">Une attaque coordonn\u00e9e a forc\u00e9 Litecoin \u00e0 annuler une partie de sa cha\u00eene samedi, effa\u00e7ant plusieurs heures d&rsquo;activit\u00e9. Les attaquants ont exploit\u00e9 une faille li\u00e9e \u00e0 sa couche de confidentialit\u00e9 MimbleWimble Extension Block (MWEB). L&rsquo;incident a d\u00e9clench\u00e9 des tentatives de double d\u00e9pense et perturb\u00e9 plusieurs protocoles inter-cha\u00eenes. Les d\u00e9veloppeurs ont depuis corrig\u00e9 la vuln\u00e9rabilit\u00e9, bien que certaines pertes aient \u00e9t\u00e9 signal\u00e9es.<\/span><\/p>\n<h2><span style=\"font-weight: 400\">R\u00e9organisation de trois heures de Litecoin suite \u00e0 une attaque sur les couches de minage et de validation<\/span><\/h2>\n<p><span style=\"font-weight: 400\">Les d\u00e9tails de la Litecoin Foundation indiquent un bug zero-day affectant les <\/span><a href=\"https:\/\/www.livebitcoinnews.com\/pi-explores-decentralized-ai-training-using-421000-active-nodes\/\"><span style=\"font-weight: 400\">n\u0153uds<\/span><\/a><span style=\"font-weight: 400\"> ex\u00e9cutant un logiciel obsol\u00e8te. Des acteurs malveillants ont cr\u00e9\u00e9 des transactions MWEB invalides qui semblaient l\u00e9gitimes pour ces n\u0153uds. Cette faille a permis des peg-outs non autoris\u00e9s de la couche de confidentialit\u00e9 vers la cha\u00eene principale. Les fonds ont ensuite \u00e9t\u00e9 dirig\u00e9s vers des \u00e9changes d\u00e9centralis\u00e9s avant que le probl\u00e8me ne soit d\u00e9tect\u00e9.<\/span><\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">Litecoin update:<\/p>\n<p>\u2022 A zero-day bug caused a DoS attack that disrupted major mining pools.<br \/>\u2022 Non-updated mining nodes allowed an invalid MWEB transaction allowing them to peg out coins to third party DEX\u2019s<br \/>\u2022 A 13-block reorg reversed those invalid transactions \u2014 they will not\u2026<\/p>\n<p>&mdash; Litecoin (@litecoin) <a href=\"https:\/\/twitter.com\/litecoin\/status\/2048135554445832542?ref_src=twsrc%5Etfw\">April 25, 2026<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p><span style=\"font-weight: 400\">L&rsquo;infrastructure de minage a subi une pression suppl\u00e9mentaire lors de l&rsquo;\u00e9v\u00e9nement. Plusieurs pools majeurs ont fait face \u00e0 des activit\u00e9s de d\u00e9ni de service li\u00e9es \u00e0 la m\u00eame exploitation. La r\u00e9organisation de la cha\u00eene a couvert les blocs 3\u202f095\u202f930 \u00e0 3\u202f095\u202f943. La production a consid\u00e9rablement ralenti, prenant plus de trois heures pour se terminer. Pendant cette fen\u00eatre, les attaquants ont ex\u00e9cut\u00e9 plusieurs tentatives de double d\u00e9pense sur des plateformes d&rsquo;\u00e9change inter-cha\u00eenes.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Alex Shevchenko <\/span><a href=\"https:\/\/x.com\/AlexAuroraDev\/status\/2048087271262318795?s=20\"><span style=\"font-weight: 400\">a d\u00e9crit<\/span><\/a><span style=\"font-weight: 400\"> l&rsquo;incident comme une attaque coordonn\u00e9e dans un message public. Il a not\u00e9 que les transactions affect\u00e9es ont ensuite \u00e9t\u00e9 supprim\u00e9es une fois que les n\u0153uds honn\u00eates ont rejet\u00e9 les blocs manipul\u00e9s. Cependant, les protocoles qui avaient d\u00e9j\u00e0 accept\u00e9 ces transactions ont subi des pertes. L&rsquo;exposition li\u00e9e \u00e0 NEAR Protocol Intents seule a atteint <\/span><a href=\"https:\/\/x.com\/AlexAuroraDev\/status\/2048099904938029159?s=20\"><span style=\"font-weight: 400\">environ 600\u202f000 $<\/span><\/a><span style=\"font-weight: 400\">.<\/span><\/p>\n<p><span style=\"font-weight: 400\">MWEB, introduit en mai 2022, permet aux utilisateurs de d\u00e9placer LTC vers une cha\u00eene d&rsquo;extension confidentielle. Ce syst\u00e8me repose sur des m\u00e9canismes de peg-in et peg-out pour maintenir l&rsquo;\u00e9quilibre entre les couches. Une faille dans ce processus comptable a permis la g\u00e9n\u00e9ration temporaire de pi\u00e8ces. Une fois que le consensus a corrig\u00e9 la cha\u00eene, ces transactions ont \u00e9t\u00e9 invalid\u00e9es et supprim\u00e9es.<\/span><\/p>\n<h2><span style=\"font-weight: 400\">Une faiblesse structurelle persiste dans LTC malgr\u00e9 une vente limit\u00e9e apr\u00e8s l&rsquo;exploitation<\/span><\/h2>\n<p><span style=\"font-weight: 400\">Malgr\u00e9 la gravit\u00e9 de l&rsquo;exploitation, la r\u00e9action du march\u00e9 est rest\u00e9e mod\u00e9r\u00e9e. L&rsquo;action des prix a montr\u00e9 une r\u00e9ponse imm\u00e9diate limit\u00e9e, sugg\u00e9rant que les traders consid\u00e9raient le probl\u00e8me comme contenu. Le sentiment g\u00e9n\u00e9ral pourrait \u00e9galement refl\u00e9ter une lassitude face aux incidents de s\u00e9curit\u00e9 r\u00e9p\u00e9t\u00e9s dans le secteur.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-162108 size-large aligncenter\" src=\"https:\/\/global.livebitcoinnews.com\/fr\/wp-content\/uploads\/sites\/4\/2026\/04\/coincodex.com-litecoin-graph-1100x621-1.png\" alt=\"Tendance du prix du Litecoin\" width=\"1100\" height=\"621\" \/><\/p>\n<p style=\"text-align: center\"><i>Source de l&rsquo;image : CoinCodex<\/i><\/p>\n<p><span style=\"font-weight: 400\">Le comportement r\u00e9cent du prix du Litecoin refl\u00e8te une faiblesse structurelle plus large :<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Se n\u00e9gocie pr\u00e8s de 56\u202f$, en baisse d&rsquo;environ 1\u202f% sur la journ\u00e9e.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">A baiss\u00e9 d&rsquo;environ 35\u202f% au cours de l&rsquo;ann\u00e9e \u00e9coul\u00e9e.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Sous-perform\u00e9 Bitcoin et Ethereum, ainsi que la moiti\u00e9 des actifs les plus importants.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Reste en dessous de sa moyenne mobile sur 200 jours.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Se trouve pr\u00e8s de <\/span><a href=\"https:\/\/coincodex.com\/crypto\/litecoin\/\"><span style=\"font-weight: 400\">86\u202f% en dessous de son plus haut historique<\/span><\/a><span style=\"font-weight: 400\">.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">M\u00eame avec ces pressions, la liquidit\u00e9 reste forte par rapport \u00e0 sa taille de march\u00e9. L&rsquo;activit\u00e9 \u00e0 court terme a \u00e9galement montr\u00e9 une certaine r\u00e9silience, avec 17 jours positifs enregistr\u00e9s au cours du dernier mois.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Les march\u00e9s de la cryptographie ont subi une pression soutenue de la part des exploitations en 2026. Plus de 750\u202fmillions de dollars ont \u00e9t\u00e9 perdus sur les plateformes DeFi d&rsquo;ici la mi-avril. Les incidents notables incluent une br\u00e8che de 292\u202fmillions de dollars impliquant <\/span><a href=\"https:\/\/www.livebitcoinnews.com\/kelp-daos-rseth-bridge-hit-by-292m-exploit-in-suspected-layerzero-attack\/\"><span style=\"font-weight: 400\">Kelp DAO<\/span><\/a><span style=\"font-weight: 400\"> et une attaque de 285\u202fmillions de dollars sur la plateforme Drift Protocol bas\u00e9e sur Solana. Bon nombre de ces attaques ciblaient l&rsquo;infrastructure inter-cha\u00eenes, similaire \u00e0 l&rsquo;\u00e9v\u00e9nement Litecoin.<\/span><\/p>\n<p><span style=\"font-weight: 400\">La r\u00e9organisation de samedi marque la premi\u00e8re exploitation connue ciblant la couche de confidentialit\u00e9 de Litecoin. Bien que le r\u00e9seau ait rapidement corrig\u00e9 le probl\u00e8me, l&rsquo;\u00e9v\u00e9nement soul\u00e8ve des inqui\u00e9tudes concernant les vuln\u00e9rabilit\u00e9s de cas limites dans les conceptions de cha\u00eenes hybrides.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La faille MWEB expose Litecoin au risque de double d\u00e9pense, for\u00e7ant une r\u00e9organisation tandis que la r\u00e9action du march\u00e9 reste limit\u00e9e. Une attaque coordonn\u00e9e a forc\u00e9 Litecoin \u00e0 annuler une partie de sa cha\u00eene samedi, effa\u00e7ant plusieurs heures d&rsquo;activit\u00e9. Les attaquants ont exploit\u00e9 une faille li\u00e9e \u00e0 sa couche de confidentialit\u00e9 MimbleWimble Extension Block (MWEB). [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":2442,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[178],"tags":[],"class_list":["post-2443","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hacked"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>R\u00e9organisation de la cha\u00eene Litecoin efface trois heures apr\u00e8s une exploitation de la couche de confidentialit\u00e9 - France Live Bitcoin News<\/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:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u00e9organisation de la cha\u00eene Litecoin efface trois heures apr\u00e8s une exploitation de la couche de confidentialit\u00e9 - France Live Bitcoin News\" \/>\n<meta property=\"og:description\" content=\"La faille MWEB expose Litecoin au risque de double d\u00e9pense, for\u00e7ant une r\u00e9organisation tandis que la r\u00e9action du march\u00e9 reste limit\u00e9e. Une attaque coordonn\u00e9e a forc\u00e9 Litecoin \u00e0 annuler une partie de sa cha\u00eene samedi, effa\u00e7ant plusieurs heures d&rsquo;activit\u00e9. Les attaquants ont exploit\u00e9 une faille li\u00e9e \u00e0 sa couche de confidentialit\u00e9 MimbleWimble Extension Block (MWEB). 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France Live Bitcoin News","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/","og_locale":"fr_FR","og_type":"article","og_title":"R\u00e9organisation de la cha\u00eene Litecoin efface trois heures apr\u00e8s une exploitation de la couche de confidentialit\u00e9 - France Live Bitcoin News","og_description":"La faille MWEB expose Litecoin au risque de double d\u00e9pense, for\u00e7ant une r\u00e9organisation tandis que la r\u00e9action du march\u00e9 reste limit\u00e9e. Une attaque coordonn\u00e9e a forc\u00e9 Litecoin \u00e0 annuler une partie de sa cha\u00eene samedi, effa\u00e7ant plusieurs heures d&rsquo;activit\u00e9. Les attaquants ont exploit\u00e9 une faille li\u00e9e \u00e0 sa couche de confidentialit\u00e9 MimbleWimble Extension Block (MWEB). [&hellip;]","og_url":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/","og_site_name":"France Live Bitcoin News","article_published_time":"2026-04-25T23:16:32+00:00","author":"frenchlbn","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"frenchlbn","Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/#article","isPartOf":{"@id":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/"},"author":{"name":"frenchlbn","@id":"https:\/\/global.livebitcoinnews.com\/fr\/#\/schema\/person\/cf8f1f85189588768e507a2eb234cba8"},"headline":"R\u00e9organisation de la cha\u00eene Litecoin efface trois heures apr\u00e8s une exploitation de la couche de confidentialit\u00e9","datePublished":"2026-04-25T23:16:32+00:00","mainEntityOfPage":{"@id":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/"},"wordCount":768,"commentCount":0,"image":{"@id":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/#primaryimage"},"thumbnailUrl":"https:\/\/global.livebitcoinnews.com\/fr\/wp-content\/uploads\/sites\/4\/2026\/04\/LTC.png","articleSection":["Hacked"],"inLanguage":"fr-FR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/","url":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/25\/reorganisation-de-la-chaine-litecoin-efface-trois-heures-apres-une-exploitation-de-la-couche-de-confidentialite\/","name":"R\u00e9organisation de la cha\u00eene Litecoin efface trois heures apr\u00e8s une exploitation de la couche de confidentialit\u00e9 - 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