{"action":"Upgrade github.com/traefik/traefik/v3 to 3.6.19 or later.","affected":[{"fixed":"3.6.19","introduced":"0"},{"fixed":"3.7.3","introduced":"3.7.0-ea.1"}],"component":"github.com/traefik/traefik/v3","cve_ids":["CVE-2026-48020"],"ecosystem":"Go","epss":0.00775,"exploited":false,"fixed_versions":["3.6.19","3.7.3"],"ghsa_id":"GHSA-xf64-8mw2-4gr2","id":"tcs_01M5KFS10FR76VG7FRCCG3D5M8","modified_at":"2026-09-02T15:45:32.566298419Z","published_at":"2026-06-11T13:26:57Z","references":["https://osv.dev/vulnerability/GHSA-xf64-8mw2-4gr2","https://github.com/traefik/traefik/security/advisories/GHSA-xf64-8mw2-4gr2","https://nvd.nist.gov/vuln/detail/CVE-2026-48020","https://access.redhat.com/errata/RHSA-2026:62260","https://access.redhat.com/security/cve/CVE-2026-48020","https://bugzilla.redhat.com/show_bug.cgi?id=2491915","https://github.com/traefik/traefik","https://github.com/traefik/traefik/releases/tag/v2.11.48","https://github.com/traefik/traefik/releases/tag/v3.6.19","https://github.com/traefik/traefik/releases/tag/v3.7.3","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48020.json"],"severity":{"label":"critical","score":10},"sources":[{"source":"osv","source_id":"GHSA-xf64-8mw2-4gr2#Go/github.com/traefik/traefik/v3","url":"https://osv.dev/vulnerability/GHSA-xf64-8mw2-4gr2"}],"summary":"Traefik has a StripPrefix Route-Level Auth Bypass via Path Normalization"}