cvedb.io
CVE-2026-47673
MEDIUM · CVSS 4.8
EPSS exploitation probability: 0%
Published 2026-05-28T17:16:32.233 · Last modified 2026-06-17T10:54:36.990

Summary

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the jwt and jwk middlewares do not verify that the Authorization header value uses theBearer scheme. Any two-part header value — regardless of the scheme name in the first position — proceeds to JWT verification. A request presenting a valid JWT under a non-Bearer scheme identifier (such as Basic or Token) is authenticated identically to a correctly formed Bearer request. This vulnerability is fixed in 4.12.21.

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.