SCA: security update for github.com/traefik/traefik/v2, github.com/traefik/traefik/v3 (GHSA-cwjm-3f7h-9hwq)

high Tenable Cloud Security Plugin ID 436788

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- 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. (CVE-2026-22045)

See Also

https://github.com/advisories/GHSA-cwjm-3f7h-9hwq

Plugin Details

Severity: High

ID: 436788

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 1/16/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-22045

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/15/2026

Vulnerability Publication Date: 1/15/2026

Reference Information

CVE: CVE-2026-22045

cwe: CWE-770