CVE-2026-85594 | BDVDB-2026-368356 Detail

Description#

Traefik versions from v3.7.1 fail to enforce crossProviderNamespaces restrictions on the traefik.ingress.kubernetes.io/service.middlewares Service annotation in the Kubernetes Ingress provider. A namespace-limited tenant excluded from the allowlist can attach an operator-owned middleware to its Service, and if that middleware injects backend credentials, recover them at a controlled backend.

Impact#

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Exploit#

History#

1. Version 12026-09-04Record published in the CVE List.
2. Version 22026-10-08Most recent update recorded in the CVE List.