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CVE-2026-47673

CVE-2026-47673 · Hono: JWT middleware accepts any Authorization scheme, not only Bearer

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 4.8 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • hono

    Versions
    • < 4.12.21: Affected

    No fix published

  • hono npm

    Affected ranges
    • SEMVER: < 4.12.21

    Update to 4.12.21

Original sources

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