CVE-2026-39406

@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.

Score

CVSS 3.1 5.3 Medium

Status

Analyzed - security-advisories@github.com

Published

2026-04-08

Last modified

2026-04-08

Weaknesses

CWE-22

Affected products

• Node-server (Hono)
• Node-server (Honojs)

References

• https://github.com/honojs/node-server/security/advisories/GHSA-92pp-h63x-v22m