CVE-2026-47673Medium· 4.8▾ SunlitHono 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 — rega…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 26.4 · likelihood 0.1 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
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.
hono < 4.12.21Upgrade past the affected range:
hono 4.12.21Connected by shared product, vendor, weakness, or advisory.
CVE-2025-62610High· 8.1Hono is a Web application framework that provides support for any JavaScript runtime
CVE-2026-47676Medium· 5.3Hono is a Web application framework that provides support for any JavaScript runtime
CVE-2026-47674Medium· 5.3Hono is a Web application framework that provides support for any JavaScript runtime
CVE-2026-47675Medium· 4.3Hono is a Web application framework that provides support for any JavaScript runtime
CVE-2026-109955Medium· 5.3Hono from 4.12.4 before 4.13.11 contains a middleware bypass vulnerability in serveStatic that allows unauthenticated attackers to skip prefix middleware by exploiting double path decoding
GHSA-3wcj-gjvf-fvchMedium· 4.8Duplicate Advisory: Hono vulnerable to Prototype Pollution possible through __proto__ key allowed in parseBody({ dot: true })