CVE-2021-29245: Btcpayserver Btcpay Server

Medium severity, CVSS 5.3. EPSS: 0.9% chance of exploitation in the next 30 days.

BTCPay Server through 1.0.7.0 uses a weak method Next to produce pseudo-random values to generate a legacy API key.

Affected products

• Btcpayserver Btcpay Server: up to and including 1.0.7.0

Published 2021-05-05. Last modified 2026-06-17.