CVE-2023-47106

Traefik is an open source HTTP reverse proxy and load balancer. When a request is sent to Traefik with a URL fragment, Traefik automatically URL encodes and forwards the fragment to the backend server. This violates RFC 7230 because in the origin-form the URL should only contain the absolute path and the query. When this is combined with another frontend proxy like Nginx, it can be used to bypass frontend proxy URI-based access control restrictions. This vulnerability has been addressed in versions 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

Alt Linux, Nginx, Traefik

Traefik

≤ 2.10.5, 3.0.0

Fix

Available

CVSS 3.1

6.5 MEDIUM

EPSS

0.6% (47th percentile)

Weakness

CWE-20

NVD status

Modified

Published

2023-12-04

No exploit for CVE-2023-47106 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.