Detections
Analytics

SCA: security update for github.com/traefik/traefik/v2, github.com/traefik/traefik/v3 (GHSA-xf64-8mw2-4gr2)

high Tenable Cloud Security Plugin ID 443076

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 2.11.48, 3.6.19, and 3.7.3, there is a high
 severity vulnerability in Traefik's StripPrefix middleware that allows an unauthenticated attacker to
 bypass route-level authentication and authorization. When a public router matches on a PathPrefix rule and
 applies the StripPrefix middleware, a request path containing .. or its percent-encoded form %2e%2e can
 match the public route at routing time and then, after the prefix is stripped and the path is normalized,
 resolve to a path served by a separate, authenticated router. As a result, an attacker can reach protected
 backend paths — such as admin or internal configuration endpoints — without satisfying the authentication
 middleware attached to the protected router. This vulnerability is fixed in 2.11.48, 3.6.19, and 3.7.3.
 (CVE-2026-48020)

Solution

Update the github.com/traefik/traefik/v2 library and its related packages to version 2.11.48 or later.

See Also

https://github.com/advisories/GHSA-xf64-8mw2-4gr2

Plugin Details

Severity: High

ID: 443076

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 6/11/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.8

Percentile: 96.91

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-48020

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 9

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

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

CVSS v4

Risk Factor: High

Base Score: 7.8

Threat Score: 6.8

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:H/SI:H/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/11/2026

Vulnerability Publication Date: 6/11/2026

Reference Information

CVE: CVE-2026-48020

cwe: CWE-288