{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0.9.0","last_affected":"1.5.5"}],"component":"github.com/go-chi/chi/middleware","cve_ids":["CVE-2026-72817"],"ecosystem":"Go","epss":0.00242,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-9g5q-2w5x-hmxf","id":"tcs_01M5KF5HS2XWANEXZ7V9J9A370","modified_at":"2026-09-10T03:50:49.185556459Z","published_at":"2026-06-25T18:18:56Z","references":["https://osv.dev/vulnerability/GHSA-9g5q-2w5x-hmxf","https://github.com/go-chi/chi/security/advisories/GHSA-9g5q-2w5x-hmxf","https://github.com/go-chi/chi","https://github.com/go-chi/chi/releases/tag/v5.3.0"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-9g5q-2w5x-hmxf","url":"https://osv.dev/vulnerability/GHSA-9g5q-2w5x-hmxf"},{"source":"nvd","source_id":"CVE-2026-72817","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72817"}],"summary":"chi Middleware Vulnerable to Potential IP Spoofing via `X-Forwarded-For` Header in `Request.RemoteAddr` Resolution"}