Detections
Analytics

SCA: security update for github.com/traefik/traefik/v2, github.com/traefik/traefik/v3 (GHSA-3ccp-42pg-hgv6)

high Tenable Cloud Security Plugin ID 445736

Description

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

 - Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.53, 3.6.24, and 3.7.9,
 Traefik's default HTTP reverse proxy forwards a plain HTTP/2 or HTTP/3 CONNECT request and its body to an
 HTTP/1.1 upstream through a shared net/http.Transport. When the upstream answers the CONNECT with a keep-
 alive non-2xx response and does not drain the body, Traefik returns the desynchronized backend socket to
 its shared pool and reuses it for other clients. An unauthenticated attacker can use this behavior to make
 a different client read the attacker's smuggled response, which can include authenticated or private
 content from another request. The ForwardAuth middleware with forwardBody true and preserveRequestMethod
 true can re-issue a CONNECT with the buffered body attached, exposing the auth-client pool to the same
 desynchronization. This issue is fixed in 2.11.53, 3.6.24, and 3.7.9. (CVE-2026-71324)

Solution

Update the github.com/traefik/traefik/v2 library and its related packages to version 2.11.53 or later.

See Also

https://github.com/advisories/GHSA-3ccp-42pg-hgv6

Plugin Details

Severity: High

ID: 445736

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 8/6/2026

Updated: 8/7/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-71324

CVSS v4

Risk Factor: High

Base Score: 7

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/6/2026

Vulnerability Publication Date: 8/6/2026

Reference Information

CVE: CVE-2026-71324

cwe: CWE-444