Yes, Traefik supports Circuit Breaker in kubernetes.

The circuit breaker expression is provided using the traefik.ingress.kubernetes.io/circuit-breaker-expression annotation provided as part of the backend Service definition.

You cab find this information in kubernetes docks

Also you can inspect service example from traefik user guide.

Example of service:

apiVersion: v1
kind: Service
metadata:
  name: wensleydale
  annotations:
    traefik.backend.circuitbreaker: "NetworkErrorRatio() > 0.5"
spec:
  ports:
  - name: http
    targetPort: 80
    port: 80
  selector:
    app: cheese
    task: wensleydale