Btcpay Server

Security incidents tagged Btcpay Server. Newest first.

1 Btcpay Server incident in the last 12 months

Critical 4 · High 3 · Med 2 · Low 1 · Update ½Severity-weighted: critical 4 · high 3 · medium 2 · low 1 · update ½LessMore

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Patched
BTCPay Server: hot wallets drained on self-hosted instances running 2.4.1 and earlier
Attackers stole Bitcoin and Litecoin from hot wallets on self-hosted BTCPay Server instances running 2.4.1 (released July 23, 2026) or earlier. BTCPay says they used a different method to exploit the vulnerability fixed in 2.4.2 (August 7) and logged in as an administrator on hit servers. It has seen no impact on servers already on 2.4.2 or later and no credible drain reports on the latest 2.4.7. Bitquery counted about $1.62M (18.38 BTC and 3,405 LTC) across 682 sweeps. Operators on 2.4.1 or earlier should sweep remaining hot-wallet funds to a new wallet with a new seed, move to a fresh server on the latest release, and rotate every credential the old server could reach, even if no theft was noticed. Wallets with spending keys held off the server were not affected.
BTCPay Server (self-hosted) 2.4.1 and earlierSince Nov 1, 2026updated Nov 4, 2026, 20:12 UTC