{"action":"Upgrade hono to 4.12.12 or later.","affected":[{"fixed":"4.12.12","introduced":"0"}],"component":"hono","cve_ids":["CVE-2026-39407"],"ecosystem":"npm","epss":0.00459,"exploited":false,"fixed_versions":["4.12.12"],"ghsa_id":"GHSA-wmmm-f939-6g9c","id":"tcs_01M5KGFE1YJ5XC67DT9E7X59CK","modified_at":"2026-09-10T03:50:44.790565774Z","published_at":"2026-04-08T00:16:45Z","references":["https://osv.dev/vulnerability/GHSA-wmmm-f939-6g9c","https://github.com/honojs/hono/security/advisories/GHSA-wmmm-f939-6g9c","https://nvd.nist.gov/vuln/detail/CVE-2026-39407","https://github.com/honojs/hono/commit/9aff14bd727f8b0435c963363fd803260e7b8e3c","https://github.com/honojs/hono","https://github.com/honojs/hono/releases/tag/v4.12.12"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-wmmm-f939-6g9c","url":"https://osv.dev/vulnerability/GHSA-wmmm-f939-6g9c"}],"summary":"Hono: Middleware bypass via repeated slashes in serveStatic"}