BTCPay Server Temporarily Restricts Public Remote Connections to LND Nodes, Vulnerability Causes Credential Leakage and Fund Theft
2026-08-09 05:57
Odaily Planet Daily News Bitcoin payment processing service BTCPay Server has temporarily restricted public remote connections to Lightning Network nodes running Lightning Network Daemon (LND) software. Attackers exploited a severe vulnerability to obtain credentials and transfer funds. The number of affected operators and the total amount stolen have not yet been disclosed.
This restriction affects external wallets such as Zeus that connect via BTCPay Server domains or Tor onion addresses in Docker deployments, but Lightning Network payments can still continue. BTCPay Server stated that remote access functionality will be restored once security is confirmed.
BTCPay Server 2.4.2 will install LND 0.21.1 and automatically regenerate macaroon credentials during standard installation. Foundation and Citadel21 have respectively disclosed that funds from their Lightning Network nodes were swept. Foundation stated that hot wallets were not affected, and the specific amounts of losses have not been disclosed.
This restriction affects external wallets such as Zeus that connect via BTCPay Server domains or Tor onion addresses in Docker deployments, but Lightning Network payments can still continue. BTCPay Server stated that remote access functionality will be restored once security is confirmed.
BTCPay Server 2.4.2 will install LND 0.21.1 and automatically regenerate macaroon credentials during standard installation. Foundation and Citadel21 have respectively disclosed that funds from their Lightning Network nodes were swept. Foundation stated that hot wallets were not affected, and the specific amounts of losses have not been disclosed.
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