Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that assists in deploying microservices. There is a potential vulnerability in Traefik managing HTTP/2 connections. A closing HTTP/2 server connection could hang forever because of a subsequent fatal error. This failure mode could be exploited to cause a denial of service. There has been a patch released in versions 2.8.8 and 2.9.0-rc5. There are currently no known workarounds.
The product does not handle or incorrectly handles an exceptional condition.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Traefik | Traefik | * | 2.8.8 (excluding) |
| Traefik | Traefik | 2.9.0-rc1 (including) | 2.9.0-rc1 (including) |
| Traefik | Traefik | 2.9.0-rc2 (including) | 2.9.0-rc2 (including) |
| Traefik | Traefik | 2.9.0-rc3 (including) | 2.9.0-rc3 (including) |
| Traefik | Traefik | 2.9.0-rc4 (including) | 2.9.0-rc4 (including) |