Go-acme vulnerabilities
We track 1 vulnerability in Go-acme products. 1 is rated high or critical, and none are known to be exploited. The most recent was published on April 21, 2026.
1vulnerabilities
0critical
1high
0exploited
8.8average CVSS score
Latest Go-acme vulnerabilities
- 8.8 High severity
lego: Improper Limitation of a Pathname to a Restricted Directory
Let's Encrypt client and ACME library written in Go (Lego). Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token cont