—
GO-2026-5593
ACME Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider in github.com/go-acme/lego
Quick fix
GO-2026-5593 — github.com/go-acme/lego/v4: upgrade to the fixed version with the command below.
go get github.com/go-acme/lego/v4@v4.34.0Details
ACME Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider in github.com/go-acme/lego
Are you affected?
Enter the version of the package you're using.
Affected packages
Go / github.com/go-acme/lego/v4
Introduced in:
0 Fixed in: 4.34.0 Fix
go get github.com/go-acme/lego/v4@v4.34.0