---
id: CVE-2026-119757
title: BTCPay Server < 2.4.2 LND Macaroon Credential File Disclosure
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 (Lightning Network
  Daemon) no…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-552
  - CWE-522
vendor: BTCPay Server
product: BTCPay Server
affected:
  - btcpay_server < 2.4.2
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T21:44:41.727Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119757'
references:
  - url: 'https://blog.btcpayserver.org/security-advisory-btcpay-server-2-4-2/'
    label: Vendor Advisory
  - url: 'https://www.binance.com/en/square/post/384812445203404'
    label: Exploitation Announcement
  - url: >-
      https://www.vulncheck.com/advisories/btcpay-server-lnd-macaroon-credential-file-disclosure
    label: >-
      VulnCheck Advisory: BTCPay Server < 2.4.2 LND Macaroon Credential File
      Disclosure
tags:
  - cve.org
ingestedAt: '2026-11-05T22:38:32.144Z'
---

## Overview

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.

## Affected

- `btcpay_server < 2.4.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.