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CVE Vulnerability Details :
CVE-2025-65951
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-25 Nov, 2025 | 00:30
Updated At-25 Nov, 2025 | 14:34
Rejected At-
▼CVE Numbering Authority (CNA)
Inside Track / Entropy Derby Timelock Encryption Bypassed via Pre-Computed VDF Output Leakage

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.

Affected Products
Vendor
mescuwa
Product
entropy-derby
Versions
Affected
  • < 2d38d2f16bbb3b4240698148f80d8c5202725c77
Problem Types
TypeCWE IDDescription
CWECWE-200CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWECWE-327CWE-327: Use of a Broken or Risky Cryptographic Algorithm
Type: CWE
CWE ID: CWE-200
Description: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Type: CWE
CWE ID: CWE-327
Description: CWE-327: Use of a Broken or Risky Cryptographic Algorithm
Metrics
VersionBase scoreBase severityVector
3.18.7HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Version: 3.1
Base score: 8.7
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/mescuwa/entropy-derby/security/advisories/GHSA-pm54-f847-w4mh
x_refsource_CONFIRM
https://github.com/mescuwa/entropy-derby/commit/2d38d2f16bbb3b4240698148f80d8c5202725c77
x_refsource_MISC
Hyperlink: https://github.com/mescuwa/entropy-derby/security/advisories/GHSA-pm54-f847-w4mh
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/mescuwa/entropy-derby/commit/2d38d2f16bbb3b4240698148f80d8c5202725c77
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found