CVE-2026-23644 esm.sh has path traversal in `extractPackageTarball` that enables file writes from malicious packages

esm.sh is a no-build content delivery network CDN for web development. Prior to Go pseeudoversion 0.0.0-20260116051925-c62ab83c589e, the software has a path traversal vulnerability due to an incomplete fix. path.Clean normalizes a path but does not prevent absolute paths in a malicious tar file...