SCA: security update for github.com/traefik/traefik/v2, github.com/traefik/traefik/v3 (GHSA-qqjf-53cj-pwvv)

critical Tenable Self-Hosted Container Security Plugin ID 447915

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. From 2.11.0 until 2.11.57 and 3.7.13, the
HTTP/3 entrypoint ConnContext does not call service.AddTransportOnContext, so kerberosRoundTripper uses a
shared backend transport instead of a transport dedicated to each frontend connection. With HTTP/3
enabled, a backend using connection-bound NTLM or Negotiate authentication, and backend keep-alive, an
unrelated client can reuse a backend connection authenticated for a victim, read victim-only data, and act
as that victim without the victim credentials. This issue is fixed in 2.11.57 and 3.7.13. (CVE-2026-88007)

Solution

Update the github.com/traefik/traefik/v2 library and its related packages to version 2.11.57 or later.

See Also

https://github.com/advisories/GHSA-qqjf-53cj-pwvv

Plugin Details

Severity: Critical

ID: 447915

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 9/11/2026

Updated: 9/11/2026

Risk Information

Vendor

Vendor Severity: Critical

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-2026-88007

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.1

Threat Score: 6.9

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/10/2026

Vulnerability Publication Date: 9/10/2026

Reference Information

CVE: CVE-2026-88007