# github.com/go-acme/lego (Go) vulnerabilities

2 known vulnerabilities (1 high, 1 low), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: v2.7.2+incompatible (Jul 31, 2019): affected by 2 advisories
- Newest unaffected release: Every release is affected by at least one advisory
- Releases: 36 since v0.1.0 (Dec 3, 2015)
- Registry: https://pkg.go.dev/github.com/go-acme/lego
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-40611: v0.1.0 to v2.7.2+incompatible (through the newest release)
- CVE-2025-54799: v0.1.0 to v2.7.2+incompatible (through the newest release)

## Advisories (2)

### [CVE-2026-40611](https://cve.now/CVE-2026-40611): Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

- Severity: High 8.8
- Published: Apr 21, 2026
- Affected: through 2.7.2.
- No fix released. The latest release, v2.7.2+incompatible, is still affected.

### [CVE-2025-54799](https://cve.now/CVE-2025-54799): Lego does not enforce HTTPS

- Severity: Low 2.3
- Published: Aug 7, 2025
- Affected: through 4.25.1.
- No fix released. The latest release, v2.7.2+incompatible, is still affected.

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