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CVE-2026-47673

Hono: JWT middleware accepts any Authorization scheme, not only Bearer PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
honojs / honoaffected < 4.12.21

CWE

CWE-285

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.