Allocation of Resources Without Limits or Throttling Affecting github.com/traefik/traefik/v2/pkg/server/router/tcp package, versions <2.11.35
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMTRAEFIKTRAEFIKV2PKGSERVERROUTERTCP-15032446
- published18 Jan 2026
- disclosed15 Jan 2026
- creditpavelkohout396
Introduced: 15 Jan 2026
CVE-2026-22045 Â (opens in a new tab)How to fix?
Upgrade github.com/traefik/traefik/v2/pkg/server/router/tcp to version 2.11.35 or higher.
Overview
github.com/traefik/traefik/v2/pkg/server/router/tcp is a modern HTTP reverse proxy and load balancer that makes deploying microservices easy. Traefik integrates with your existing infrastructure components (Docker, Swarm mode, Kubernetes, Marathon, Consul, Etcd, Rancher, Amazon ECS, ...) and configures itself automatically and dynamically. Pointing Traefik at your orchestrator should be the only configuration step you need.
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the ACME TLS certificates' automatic generation. An attacker can exhaust system resources by opening multiple connections, sending minimal ClientHello messages with acme-tls/1, and then ceasing communication, which causes go routines and file descriptors to remain occupied indefinitely when ACME TLS challenge is enabled.