{"action":"Upgrade github.com/traefik/traefik/v2 to 2.11.43 or later.","affected":[{"fixed":"2.11.43","introduced":"0"}],"component":"github.com/traefik/traefik/v2","cve_ids":["CVE-2026-40912"],"ecosystem":"Go","epss":0.00767,"exploited":false,"fixed_versions":["2.11.43"],"ghsa_id":"GHSA-6jwx-7vp4-9847","id":"tcs_01M5KF0CXR39G17EM9SFXNHVJY","modified_at":"2026-07-21T14:00:32.843449384Z","published_at":"2026-04-24T16:37:53Z","references":["https://osv.dev/vulnerability/GHSA-6jwx-7vp4-9847","https://github.com/traefik/traefik/security/advisories/GHSA-6jwx-7vp4-9847","https://nvd.nist.gov/vuln/detail/CVE-2026-40912","https://access.redhat.com/errata/RHSA-2026:21772","https://access.redhat.com/security/cve/CVE-2026-40912","https://bugzilla.redhat.com/show_bug.cgi?id=2464229","https://github.com/traefik/traefik","https://github.com/traefik/traefik/releases/tag/v2.11.43","https://github.com/traefik/traefik/releases/tag/v3.6.14","https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40912.json"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"GHSA-6jwx-7vp4-9847#Go/github.com/traefik/traefik/v2","url":"https://osv.dev/vulnerability/GHSA-6jwx-7vp4-9847"}],"summary":"Traefik has an StripPrefixRegex Middleware Authorization Bypass via Path/RawPath Desync"}