Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| traefik | traefik | < 2.8.8, >= 2.9.0-rc1, < 2.9.0-rc5 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/traefik/traefik/v2 | < 2.8.8 | 2.8.8 | GHSA-c6hx-pjc3-7fqr |
| Go | github.com/traefik/traefik/v2 | >= 2.9.0-rc1, < 2.9.0-rc5 | 2.9.0-rc5 | GHSA-c6hx-pjc3-7fqr |
Advisories 2
- WID-SEC-2023-0138 Oracle Communications Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 15, 2025
- WID-SEC-2023-1022 Oracle Communications Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 18, 2023