{"id":"CVE-2026-29087","state":"PUBLISHED","title":"@hono/node-server: Authorization bypass for protected static paths via encoded slashes in Serve Static Middleware","description":"@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.","publishedAt":"2026-03-06T17:03:30.412Z","updatedAt":"2026-03-06T18:02:36.517Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["honojs node-server"],"affected":[{"vendor":"honojs","product":"node-server","versions":[{"version":"< 1.19.10","status":"affected"}]}],"references":["https://github.com/honojs/node-server/security/advisories/GHSA-wc8c-qw6v-h7f6","https://github.com/honojs/node-server/commit/455015be1697dd89974a68b70350ea7b2d126d2e"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/29xxx/CVE-2026-29087.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-29087","state":"PUBLISHED","datePublished":"2026-03-06T17:03:30.412Z","dateUpdated":"2026-03-06T18:02:36.517Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-03T20:51:43.484Z"},"containers":{"cna":{"title":"@hono/node-server: Authorization bypass for protected static paths via encoded slashes in Serve Static Middleware","descriptions":[{"lang":"en","value":"@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."}],"affected":[{"vendor":"honojs","product":"node-server","versions":[{"version":"< 1.19.10","status":"affected"}]}],"references":[{"url":"https://github.com/honojs/node-server/security/advisories/GHSA-wc8c-qw6v-h7f6","name":"https://github.com/honojs/node-server/security/advisories/GHSA-wc8c-qw6v-h7f6","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/honojs/node-server/commit/455015be1697dd89974a68b70350ea7b2d126d2e","name":"https://github.com/honojs/node-server/commit/455015be1697dd89974a68b70350ea7b2d126d2e","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-06T17:03:30.412Z"},"source":{"advisory":"GHSA-wc8c-qw6v-h7f6","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-06T17:58:30.981713Z","id":"CVE-2026-29087","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-06T18:02:36.517Z"}}]}}}