Allocation of Resources Without Limits or Throttling Affecting github.com/traefik/traefik/pkg/server/router/tcp package, versions <2.11.35>=3.0.0-beta1 <3.6.7


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.33% (27th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMTRAEFIKTRAEFIKPKGSERVERROUTERTCP-15010728
  • published16 Jan 2026
  • disclosed15 Jan 2026
  • creditpavelkohout396

Introduced: 15 Jan 2026

CVE-2026-22045  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade github.com/traefik/traefik/pkg/server/router/tcp to version 2.11.35, 3.6.7 or higher.

Overview

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.

CVSS Base Scores

version 4.0
version 3.1