Detections
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Echo: github.com/traefik/traefik/v3: security update to 2.11.57

high Tenable Cloud Security Plugin ID 464195

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 2.11.57, and 3.7.13, Traefik
 accepts a rootless HTTP/1 request target that Go stores in URL.Opaque while leaving URL.Path empty. The
 rewriteRequestBuilder path evaluates routing, path sanitization, forwardAuth, encodedCharacters, and
 access logging against a path normalized to / but forwards URL.Opaque verbatim to the backend, allowing
 cross-vhost routing bypass, path-scoped authorization bypass, and access-log evasion when the backend
 interprets the opaque target as a path. This issue is fixed in 2.11.57 and 3.7.13. (CVE-2026-88009)

Solution

Update the github.com/traefik/traefik/v3 library and its related packages to version 2.11.57 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-88009

Plugin Details

Severity: High

ID: 464195

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.57

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-88009

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

CVSS v4

Risk Factor: High

Base Score: 8.8

Threat Score: 6.7

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/29/2026

Vulnerability Publication Date: 8/13/2026

Reference Information

CVE: CVE-2026-88009