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CVE-2025-65951

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CVE-2025-65951

Published: Nov 25, 2025

Modified: Nov 25, 2025

PUBLISHED

CVSS v3.1

8.7

HIGH

Description

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.

VendorProductVersions

mescuwa

entropy-derby

affected
< 2d38d2f16bbb3b4240698148f80d8c5202725c77

Weaknesses (CWE)

CWE-200
CWE-327

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

References

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