CVE-2026-44774

9.9 CRITICAL

Traefik is an HTTP reverse proxy and load balancer

Published: 2026-05-15 · Last updated: 2026-05-19

Severity and scoring

CVSS: 9.9 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE: CWE-284

Affected products

Vendor	Product
traefik	traefik

Description

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.46, 3.6.17, and 3.7.1, Traefik's Kubernetes Gateway API provider allows a tenant with HTTPRoute creation permissions to expose the REST provider handler, bypassing the providers.rest.insecure=false setting. The Gateway provider accepts any TraefikService backend reference whose name ends with @internal, making it possible to route traffic to rest@internal in addition to the intended api@internal. In shared Gateway deployments where the REST provider is enabled, this allows a low-privileged actor to gain live dynamic configuration write access to Traefik, enabling unauthorized reconfiguration of routers and services. This vulnerability is fixed in 2.11.46, 3.6.17, and 3.7.1.

Source: NVD

References

Related CVEs

Same vendor

CVE-2026-41181 — Traefik is an HTTP reverse proxy and load balancer (5.8 MEDIUM)

Same CWE

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