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SCA: security update for github.com/traefik/traefik/v3 (GHSA-7vww-mvcr-x6vj)

medium Tenable Cloud Security Plugin ID 436290

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. Versions 3.5.0 through 3.6.2 have inverted TLS
 verification logic in the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation
 to "on" (intending to enable backend TLS certificate verification) actually disables verification,
 allowing man-in-the-middle attacks against HTTPS backends when operators believe they are protected. This
 issue is fixed in version 3.6.3. (CVE-2025-66491)

See Also

https://github.com/advisories/GHSA-7vww-mvcr-x6vj

Plugin Details

Severity: Medium

ID: 436290

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 12/8/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2025-66491

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/8/2025

Vulnerability Publication Date: 12/8/2025

Reference Information

CVE: CVE-2025-66491

cwe: CWE-295