CVSS 3.1 Score 4.8 of 10 (medium)


Published Dec 4, 2023
Updated: Dec 7, 2023


CVE-2023-47106 is a vulnerability affecting Traefik, an open source HTTP reverse proxy and load balancer. This vulnerability allows for bypassing frontend proxy URI-based access control restrictions when Traefik is combined with another frontend proxy like Nginx. The issue arises when Traefik automatically URL encodes and forwards a URL fragment to the backend server, violating RFC 7230. To remediate this vulnerability, users are advised to upgrade to versions 2.10.6 or 3.0.0-beta5 of Traefik. The potential danger posed by this vulnerability is considered medium, with a base severity rating of 4.8 out of 10, and low impacts on integrity and confidentiality.


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