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SCA: security update for github.com/traefik/traefik/v3 (GHSA-67jx-r9pv-98rj)

medium Tenable Self-Hosted Container Security Plugin ID 439352

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 versions 3.6.11 and 3.7.0-ea.2, Traefik's
 Knative provider builds router rules by interpolating user-controlled values into backtick-delimited rule
 expressions without escaping. In live cluster validation, Knative `rules[].hosts[]` was exploitable for
 host restriction bypass (for example `tenant.example.com`) || Host(`attacker.com`), producing a router
 that serves attacker-controlled hosts. Knative `headers[].exact` also allows rule-syntax injection and
 proves unsafe rule construction. In multi-tenant clusters, this can route unauthorized traffic to victim
 services and lead to cross-tenant traffic exposure. Versions 3.6.11 and 3.7.0-ea.2 patch the issue.
 (CVE-2026-32695)

Solution

Update the github.com/traefik/traefik/v3 library and its related packages to version 3.6.11 or later.

See Also

https://github.com/advisories/GHSA-67jx-r9pv-98rj

Plugin Details

Severity: Medium

ID: 439352

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 3/27/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 51.19

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-32695

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.9

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 5.1

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/27/2026

Vulnerability Publication Date: 3/22/2026

Reference Information

CVE: CVE-2026-32695

cwe: CWE-74