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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.
Impact
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.
Patches
Traefik v2.8.x: https://github.com/traefik/traefik/releases/tag/v2.8.8
Traefik v2.9.x: https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5
Workarounds
No workaround.
For more information
If you have any questions or comments about this advisory, please open an issue.