What’s Vulnerable › Vulnerabilities

CVE-2021-29249

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-26 · updated 2026-06-17

Description

BTCPay Server before 1.0.6.0, when the payment button is used, has a privacy vulnerability.

Affected products

• btcpayserver/btcpayserver: before 1.0.6.0 — fixed in 1.0.6.0

How to fix

Upgrade to a fixed version: btcpayserver/btcpayserver 1.0.6.0. Check the vendor advisory for mitigations.

References

• https://blog.btcpayserver.org/btcpay-server-1-0-6-0/
• https://github.com/btcpayserver/btcpayserver/releases
• https://blog.btcpayserver.org/btcpay-server-1-0-6-0/
• https://github.com/btcpayserver/btcpayserver/releases

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