CVE Catalog

CVE-2026-119757

CriticalCVSS 9.8
Published: Translated: NVD NIST

Summary

BTCPay Server before 2.4.2, including 2.4.2 release candidates, contains an information disclosure vulnerability that allows unauthenticated remote attackers to retrieve .macaroon credential files for an LND node. The exposed macaroon can be used to gain full control of the LND node, including moving funds, resulting in theft of funds.

Risk Assessment

An attacker can take control of the Lightning node and steal funds from affected BTCPay Server deployments.

Recommendation

Update BTCPay Server to version 2.4.2 or later and revoke/rotate any exposed macaroons.

Related vulnerabilities

Original NVD description (English source)

BTCPay Server before 2.4.2, including 2.4.2 release candidates, contains an information disclosure vulnerability that allows unauthenticated remote attackers to retrieve .macaroon credential files for an LND (Lightning Network Daemon) node. Attackers can use the exposed macaroon to gain full control of the LND node, including moving funds, resulting in theft of funds from affected deployments.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS