High · published June 23, 2026
Traefik before 2.10.5 and 3.0.0-beta4 is affected by a denial-of-service vulnerability in HTTP/2 request handling inherited from the Go standard library's HTTP/2 implementation (CVE-2023-44487 / CVE-2023-39325, the 'Rapid Reset' technique). A remote attacker can rapidly create and cancel HTTP/2 streams to exhaust server resources and cause service unavailability.
| Product | Versions | Fixed in |
|---|---|---|
| traefik/traefik | < 2.10.5 | 2.10.5 |
| traefik/traefik | all versions | — |
| traefik/traefik | all versions | — |
| traefik/traefik | all versions | — |
| golang/go | < 1.20.10 | 1.20.10 |
| golang/go | ≥ 1.21.0, < 1.21.3 | 1.21.3 |
| redhat/openshift_ai | all versions | — |