Traefik before 1.7.26, 2.2.8, and 2.3.0-rc3 contains an open redirect vulnerability in the X-Forwarded-Prefix header. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
View the template here CVE-2020-15129.yaml
References:
https://github.com/containous/traefik/releases/tag/v2.2.8