Detections
Analytics

SCA: security update for github.com/traefik/traefik/v2, github.com/traefik/traefik/v3 (GHSA-p6hg-qh38-555r)

medium Tenable Cloud Security Plugin ID 441055

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 2.11.44, 3.6.15, and 3.7.0-rc.3, there is an
 information disclosure vulnerability in Traefik's errors (custom error pages) middleware. When the backend
 returns a response matching the configured status range, the middleware forwards the original request's
 complete header set, including Authorization, Cookie, and other authentication material, to the separate
 error page service rather than only the minimal context needed to render the error page. This behavior is
 undocumented: the documentation states only that Host is forwarded by default, so operators are not warned
 that sensitive credentials are shared across service boundaries. Deployments using the errors middleware
 with a distinct error page service may inadvertently expose end-user credentials to infrastructure that
 was not intended to receive them. This vulnerability is fixed in 2.11.44, 3.6.15, and 3.7.0-rc.3.
 (CVE-2026-41181)

Solution

Update the github.com/traefik/traefik/v2 library and its related packages to version 2.11.44 or later.

See Also

https://github.com/advisories/GHSA-p6hg-qh38-555r

Plugin Details

Severity: Medium

ID: 441055

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 5/4/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.79

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2026-41181

CVSS v3

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 5.2

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/4/2026

Vulnerability Publication Date: 5/4/2026

Reference Information

CVE: CVE-2026-41181

cwe: CWE-201