{"id":"CVE-2026-29087","aliases":["GHSA-wc8c-qw6v-h7f6"],"url":"https://o3.security/vulnerability/CVE-2026-29087","summary":"@hono/node-server: Authorization bypass for protected static paths via encoded slashes in Serve Static Middleware","details":"@hono/node-server allows running the Hono application on Node.js. Prior to version 1.19.10, when using @hono/node-server's static file serving together with route-based middleware protections (e.g. protecting /admin/*), inconsistent URL decoding can allow protected static resources to be accessed without authorization. In particular, paths containing encoded slashes (%2F) may be evaluated differently by routing/middleware matching versus static file path resolution, enabling a bypass where middleware does not run but the static file is still served. This issue has been patched in version 1.19.10.","published":"2026-03-06T17:03:30.412Z","modified":"2026-07-15T01:48:49.871763089Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@hono/node-server","fixedVersion":"1.19.10"}],"fix":{"url":"https://github.com/honojs/node-server/commit/455015be1697dd89974a68b70350ea7b2d126d2e","label":"honojs/node-server@455015b"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29087.json"},{"type":"ADVISORY","url":"https://github.com/honojs/node-server/security/advisories/GHSA-wc8c-qw6v-h7f6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29087"},{"type":"FIX","url":"https://github.com/honojs/node-server/commit/455015be1697dd89974a68b70350ea7b2d126d2e"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:48:49.871763089Z"}}