{"id":27446,"date":"2025-11-24T21:25:14","date_gmt":"2025-11-24T21:25:14","guid":{"rendered":"http:\/\/localhost\/?p=27446"},"modified":"2025-11-24T21:25:14","modified_gmt":"2025-11-24T21:25:14","slug":"inside-track-entropy-derby-timelock-encryption-bypassed-via-pre-computed-vdf-output-leakage","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=27446","title":{"rendered":"Inside Track \/ Entropy Derby Timelock Encryption Bypassed via Pre-Computed VDF Output Leakage_CVE-2025-65951"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;Inside Track \/ Entropy Derby is a research-grade horse-racing betting engine. Prior to commit 2d38d2f, the VDF-based timelock encryption system fails to enforce sequential delay against the betting operator. Bettors pre-compute the entire Wesolowski VDF and include vdfOutputHex in their encrypted bet ticket, allowing the house to decrypt immediately using fast proof verification instead of expensive VDF evaluation. This issue has been patched via commit 2d38d2f.&#8221;,&#8221;published&#8221;:&#8221;2025-11-25T00:30:14.735Z&#8221;,&#8221;modified&#8221;:&#8221;2025-11-25T00:30:14.735Z&#8221;,&#8221;type&#8221;:&#8221;cve&#8221;,&#8221;title&#8221;:&#8221;Inside Track \/ Entropy Derby Timelock Encryption Bypassed via Pre-Computed VDF Output Leakage&#8221;,&#8221;source&#8221;:&#8221;GitHub_M&#8221;,&#8221;references&#8221;:&#8221;https:\/\/github.com\/mescuwa\/entropy-derby\/security\/advisories\/GHSA-pm54-f847-w4mh\\nhttps:\/\/github.com\/mescuwa\/entropy-derby\/commit\/2d38d2f16bbb3b4240698148f80d8c5202725c77&#8243;,&#8221;id&#8221;:&#8221;CVE-2025-65951&#8243;,&#8221;bulletinFamily&#8221;:&#8221;&#8221;,&#8221;cwe&#8221;:[&#8220;CWE-200&#8243;,&#8221;CWE-327&#8243;],&#8221;cvelist&#8221;:null,&#8221;sourceData&#8221;:&#8221;mescuwa entropy-derby \\u003c 2d38d2f16bbb3b4240698148f80d8c5202725c77&#8243;,&#8221;sourceHref&#8221;:&#8221;&#8221;,&#8221;cvss&#8221;:{&#8220;score&#8221;:8.7,&#8221;severity&#8221;:&#8221;HIGH&#8221;,&#8221;vector&#8221;:&#8221;CVSS:3.1\/AV:N\/AC:L\/PR:H\/UI:N\/S:C\/C:H\/I:H\/A:N&#8221;,&#8221;version&#8221;:&#8221;3.1&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;&#8221;,&#8221;category_name&#8221;:&#8221;CVE&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;entropy-derby&#8221;,&#8221;version&#8221;:&#8221;\\u003c 2d38d2f16bbb3b4240698148f80d8c5202725c77&#8243;,&#8221;vendor&#8221;:&#8221;mescuwa&#8221;,&#8221;ai_description&#8221;:&#8221;Timelock encryption bypass via pre-computed VDF output leakage&#8221;,&#8221;ai_severity&#8221;:&#8221;High&#8221;,&#8221;ai_vendor&#8221;:&#8221;mescuwa&#8221;,&#8221;ai_product&#8221;:&#8221;entropy-derby&#8221;,&#8221;ai_version&#8221;:&#8221;\\u003c 2d38d2f16bbb3b4240698148f80d8c5202725c77&#8243;,&#8221;ai_score&#8221;:8.7}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;Inside Track \/ Entropy Derby is a research-grade horse-racing betting engine. Prior to commit 2d38d2f, the VDF-based timelock encryption system fails to enforce sequential delay&#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":[6,8,19,12,15,13,7,11,5],"class_list":["post-27446","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-87","tag-exploit","tag-high","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>Inside Track \/ Entropy Derby Timelock Encryption Bypassed via Pre-Computed VDF Output Leakage_CVE-2025-65951 - 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=27446\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Inside Track \/ Entropy Derby Timelock Encryption Bypassed via Pre-Computed VDF Output Leakage_CVE-2025-65951 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;Inside Track \/ Entropy Derby is a research-grade horse-racing betting engine. 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