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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-47673)

ID	Name	Product	Family	Type	Severity
462652	Echo: hono: security update to 4.12.21	Tenable Cloud Security	Echo Local Security Checks	Local	medium
462652	Echo: hono: security update to 4.12.21	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
442622	SCA: security update for hono (GHSA-f577-qrjj-4474)	Tenable Cloud Security	SCA Checks	Local	medium
442622	SCA: security update for hono (GHSA-f577-qrjj-4474)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium

Detections

Analytics

CVE-2026-47673

medium

Tenable Plugins

medium

medium

medium

medium