CVE-2025-66490
Path Normalization Bypass in Traefik Router + Middleware Rules in github.com/traefik/traefik
EPSS 0.02%
Description
Path Normalization Bypass in Traefik Router + Middleware Rules in github.com/traefik/traefik
How to fix CVE-2025-66490
To remediate CVE-2025-66490, upgrade the affected package to a fixed version below.
- Go/github.com/traefik/traefik—no fix listed
- Go/github.com/traefik/traefik—no fix listed
- Go/github.com/traefik/traefik/v2—upgrade to 2.11.32 or later
- Go/github.com/traefik/traefik/v2—upgrade to 2.11.32 or later
- —upgrade to 3.6.3 or later
- —upgrade to 3.6.3 or later
Is CVE-2025-66490 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, <= 1.7.34
- from 0
- from 0, < 2.11.32
- from 0, < 2.11.32
- from 0, < 3.6.3
- from 0, < 3.6.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |