CVE-2025-65951

HighCVSS 8.7/10Last modified Oct 18, 2026

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.

Metrics

CVSS 3.1 8.7/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Weakness enumeration

CWE-200 CWE-327

Affected software

No affected versions have been published.

Timeline

Published: Nov 25, 2025
Last modified: Oct 18, 2026
NVD status: Deferred

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