GO-2026-4893

vendorUSosv

Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField in github.com/traefik/traefik

view advisory published 2026-04-02Licence: per source

Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField in github.com/traefik/traefik

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-33433UShigh8.8—
Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.42, 3.6.11, and 3.7.0-ea.3, when `headerField` is configured with a non-canonical HTTP header name (e.g.,…
02

references

External citations — patches, advisories, analysis.

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