CVE-2023-47106 Affecting traefik package, versions <2.10.6-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.1% (44th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-TRAEFIK-6099043
  • published5 Dec 2023
  • disclosed4 Dec 2023

Introduced: 4 Dec 2023

CVE-2023-47106  (opens in a new tab)

How to fix?

Upgrade Chainguard traefik to version 2.10.6-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream traefik package and not the traefik package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Scores

version 3.1