CVE-2025-54799: github.com/go-acme/lego/v4/acme/api does not enforce HTTPS

August 6, 2025 (updated August 7, 2025)

It was discovered that the github.com/go-acme/lego/v4/acme/api package (thus the lego library and the lego cli as well) don’t enforce HTTPS when talking to CAs as an ACME client.

References

github.com/advisories/GHSA-q82r-2j7m-9rv4
github.com/go-acme/lego
github.com/go-acme/lego/commit/238454b5f74f3cfcbb244ff0d0dc914a4ad44b96
github.com/go-acme/lego/security/advisories/GHSA-q82r-2j7m-9rv4
nvd.nist.gov/vuln/detail/CVE-2025-54799

Code Behaviors & Features

Detect and mitigate CVE-2025-54799 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →