Use of Incorrectly-Resolved Name or Reference Affecting traefik-2 package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.07% (21st percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-TRAEFIK2-16298601
  • published26 Apr 2026
  • disclosed30 Apr 2026

Introduced: 26 Apr 2026

NewCVE-2026-40912  (opens in a new tab)
CWE-706  (opens in a new tab)

How to fix?

There is no fixed version for Minimos:latest traefik-2.

NVD Description

Note: Versions mentioned in the description apply only to the upstream traefik-2 package and not the traefik-2 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is a high severity authentication bypass vulnerability in Traefik's StripPrefixRegex middleware when used in combination with ForwardAuth, BasicAuth, or DigestAuth. The middleware matches the regex against the decoded URL path but uses the resulting byte length to slice the percent-encoded raw path. When a dot (or multiple dots) appears in the prefix portion of the URL, the raw path after stripping becomes a dot-segment (e.g. /./admin/secret). ForwardAuth receives this dot-segment path in X-Forwarded-Uri, which does not match the protected path patterns and therefore allows the request through. The backend then normalizes the dot-segment to the real path per RFC 3986 and serves the protected content An unauthenticated attacker can exploit this against any backend that performs dot-segment normalization. This issue has been patched in versions 2.11.43, 3.6.14, and 3.7.0-rc.2.

CVSS Base Scores

version 3.1