8.2
High
CVE-2026-22817 Hono is a Web application framework that provides support for any JavaScript runtime
Description
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the JWT header’s alg value to influence signature verification when the selected JWK did not explicitly specify an algorithm. This could enable JWT algorithm confusion and, in certain configurations, allow forged tokens to be accepted. As part of this fix, the JWT middleware now requires the alg option to be explicitly specified. This prevents algorithm confusion by ensuring that the verification algorithm is not derived from untrusted JWT header values. This vulnerability is fixed in 4.11.4.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| hono 4.11 | earliest → < 4.11.4 | 4.11.4 |
Other CVEs of hono
The 48 CVEs of hono →
CVE-2026-111757
Hono is a Web application framework that provides support for any JavaScript runtime
5.3
Medium
CVE-2026-109955
Hono from 4.12.4 before 4.13.11 contains a middleware bypass vulnerability in serveStatic that allows unauthenticated…
6.9
Medium
CVE-2026-93981
hono before 4.13.7 fails to HTML-escape plain strings rendered by hono/jsx as a child or fallback of Suspense, as a…
2.3
Low
CVE-2026-84365
Hono is a Web application framework that provides support for any JavaScript runtime
6.5
Medium