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.

INFO

Published Date :

2026-01-13T19:49:55.316Z

Last Modified :

2026-01-14T19:12:35.457Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-22817 vulnerability.

Vendors Products
Hono
  • Hono
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-22817.

CVSS Vulnerability Scoring System

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