{"action":"Upgrade github.com/traefik/traefik/v3 to 3.6.3 or later.","affected":[{"fixed":"3.6.3","introduced":"0"}],"component":"github.com/traefik/traefik/v3","cve_ids":["CVE-2025-66490"],"ecosystem":"Go","epss":0.00439,"exploited":false,"fixed_versions":["3.6.3"],"ghsa_id":"GHSA-gm3x-23wp-hc2c","id":"tcs_01M5KGC952NB090EDC0VV8BJKD","modified_at":"2026-04-16T02:14:30.441751983Z","published_at":"2025-12-15T19:37:35Z","references":["https://osv.dev/vulnerability/GO-2025-4206","https://github.com/traefik/traefik/security/advisories/GHSA-gm3x-23wp-hc2c","https://nvd.nist.gov/vuln/detail/CVE-2025-66490","https://github.com/traefik/traefik/releases/tag/v2.11.32","https://github.com/traefik/traefik/releases/tag/v3.6.4"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GO-2025-4206#Go/github.com/traefik/traefik/v3","url":"https://osv.dev/vulnerability/GO-2025-4206"},{"source":"nvd","source_id":"CVE-2025-66490","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66490"}],"summary":"Path Normalization Bypass in Traefik Router + Middleware Rules in github.com/traefik/traefik"}