🛡️ CVE-2023-47106
🟡 CVSS 4.8 — Medium ✅ No Known Exploit NVD
4.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity Medium
CVSS Score 4.8
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2024-08-21
Updated 2026-06-15
Modified 2026-02-04
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/traefik/traefik — —
github.com/traefik/traefik/v2 — —
github.com/traefik/traefik/v3 — —
traefik — —

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