Interpretation Conflict Affecting traefik-3 package, versions <3.7.13-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.45% (37th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-TRAEFIK3-19687923
  • published12 Sept 2026
  • disclosed10 Sept 2026

Introduced: 10 Sep 2026

CVE-2026-88004  (opens in a new tab)
CWE-436  (opens in a new tab)
CWE-807  (opens in a new tab)

How to fix?

Upgrade Minimos:latest traefik-3 to version 3.7.13-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream traefik-3 package and not the traefik-3 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Traefik is an open source HTTP reverse proxy and load balancer. From 3.2.0 until 3.7.13, Traefik entrypoint defenses aliasHeadersStrategy, underscoreHeadersStrategy, and forwardedHeaders inspect req.Header but not req.Trailer, allowing an unauthenticated client to submit an aliasing or trusted header name in an HTTP/1.1 chunked trailer or an HTTP/2 trailer. When the retry or buffering middleware reads the body before the reverse proxy clones the request, the attacker-controlled trailer value reaches a backend that merges trailers into the header namespace, bypassing the documented delete or reject behavior and potentially spoofing identity or forwarded routing data. This issue is fixed in 3.7.13.

CVSS Base Scores

version 3.1