cvedb.io
CVE-2026-29045
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-03-04T23:16:10.247 · Last modified 2026-06-17T10:29:30.013

Summary

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, when using serveStatic together with route-based middleware protections (e.g. app.use('/admin/*', ...)), inconsistent URL decoding allowed protected static resources to be accessed without authorization. The router used decodeURI, while serveStatic used decodeURIComponent. This mismatch allowed paths containing encoded slashes (%2F) to bypass middleware protections while still resolving to the intended filesystem path. This issue has been patched in version 4.12.4.

Affected products

hono — hono

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.