NIXPKGS-2026-0071 published on 21 Jan 2026 CVE-2026-22045 updated 1 day, 11 hours ago by @LeSuisse Activity log Created automatic suggestion 1 day, 16 hours ago @LeSuisse removed package traefik-certs-dumper 1 day, 12 hours ago @LeSuisse removed maintainer @NickCao 1 day, 11 hours ago @LeSuisse accepted as draft 1 day, 11 hours ago @LeSuisse published on GitHub 1 day, 11 hours ago Traefik's ACME TLS-ALPN fast path lacks timeouts and close on handshake stall Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.35 and 3.6.7, there is a potential vulnerability in Traefik ACME TLS certificates' automatic generation: the ACME TLS-ALPN fast path can allow unauthenticated clients to tie up go routines and file descriptors indefinitely when the ACME TLS challenge is enabled. A malicious client can open many connections, send a minimal ClientHello with acme-tls/1, then stop responding, leading to denial of service of the entry point. The vulnerability is fixed in 2.11.35 and 3.6.7. Affected products traefik ==>=3.0.0-beta1, < 3.6.7 ==< 2.11.35 Matching in nixpkgs pkgs.traefik Modern reverse proxy nixos-unstable 3.6.1 nixpkgs-unstable 3.6.1 nixos-unstable-small 3.6.2 nixos-25.05 3.3.6 nixos-25.05-small 3.3.6 nixpkgs-25.05-darwin 3.3.6 Package maintainers: 2 @djds djds <git@djds.dev> @vdemeester Vincent Demeester <vincent@sbr.pm> GitHub issue
CVE-2026-22045 updated 1 day, 11 hours ago by @LeSuisse Activity log Created automatic suggestion 1 day, 16 hours ago @LeSuisse removed package traefik-certs-dumper 1 day, 12 hours ago @LeSuisse removed maintainer @NickCao 1 day, 11 hours ago @LeSuisse accepted as draft 1 day, 11 hours ago @LeSuisse published on GitHub 1 day, 11 hours ago Traefik's ACME TLS-ALPN fast path lacks timeouts and close on handshake stall Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.35 and 3.6.7, there is a potential vulnerability in Traefik ACME TLS certificates' automatic generation: the ACME TLS-ALPN fast path can allow unauthenticated clients to tie up go routines and file descriptors indefinitely when the ACME TLS challenge is enabled. A malicious client can open many connections, send a minimal ClientHello with acme-tls/1, then stop responding, leading to denial of service of the entry point. The vulnerability is fixed in 2.11.35 and 3.6.7. Affected products traefik ==>=3.0.0-beta1, < 3.6.7 ==< 2.11.35 Matching in nixpkgs pkgs.traefik Modern reverse proxy nixos-unstable 3.6.1 nixpkgs-unstable 3.6.1 nixos-unstable-small 3.6.2 nixos-25.05 3.3.6 nixos-25.05-small 3.3.6 nixpkgs-25.05-darwin 3.3.6 Package maintainers: 2 @djds djds <git@djds.dev> @vdemeester Vincent Demeester <vincent@sbr.pm>
pkgs.traefik Modern reverse proxy nixos-unstable 3.6.1 nixpkgs-unstable 3.6.1 nixos-unstable-small 3.6.2 nixos-25.05 3.3.6 nixos-25.05-small 3.3.6 nixpkgs-25.05-darwin 3.3.6