{"id":"CVE-2026-39406","aliases":["GHSA-92pp-h63x-v22m"],"url":"https://o3.security/vulnerability/CVE-2026-39406","summary":"@hono/node-server has a middleware bypass via repeated slashes in serveStatic","details":"@hono/node-server allows running the Hono application on Node.js. Prior to 1.19.13, a path handling inconsistency in serveStatic allows protected static files to be accessed by using repeated slashes (//) in the request path. When route-based middleware (e.g., /admin/*) is used for authorization, the router may not match paths containing repeated slashes, while serveStatic resolves them as normalized paths. This can lead to a middleware bypass. This vulnerability is fixed in 1.19.13.","published":"2026-04-08T14:34:30.543Z","modified":"2026-07-27T03:56:36.764489719Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@hono/node-server","fixedVersion":"1.19.13"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39406.json"},{"type":"ADVISORY","url":"https://github.com/honojs/node-server/security/advisories/GHSA-92pp-h63x-v22m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39406"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-27T03:56:36.764489719Z"}}