{"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-2026-41263"],"ecosystem":"Go","epss":0.00369,"exploited":false,"fixed_versions":["2.11.43"],"ghsa_id":"GHSA-6x2q-h3cr-8j2h","id":"tcs_01M5KF10XPPP5ZJ9DPNQXN753R","modified_at":"2026-06-25T19:56:38.840221951Z","published_at":"2026-04-24T20:36:41Z","references":["https://osv.dev/vulnerability/GHSA-6x2q-h3cr-8j2h","https://github.com/traefik/traefik/security/advisories/GHSA-6x2q-h3cr-8j2h","https://nvd.nist.gov/vuln/detail/CVE-2026-41263","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"],"severity":{"label":"low","score":3.7},"sources":[{"source":"osv","source_id":"GHSA-6x2q-h3cr-8j2h#Go/github.com/traefik/traefik/v2","url":"https://osv.dev/vulnerability/GHSA-6x2q-h3cr-8j2h"}],"summary":"Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware"}