honojs hono up to 4.10.1 improper authorization

Summaryinfo

A vulnerability labeled as critical has been found in honojs hono up to 4.10.1. Affected by this vulnerability is an unknown functionality. Executing a manipulation can lead to improper authorization. This vulnerability is handled as CVE-2025-62610. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in honojs hono up to 4.10.1. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Hono is a Web application framework that provides support for any JavaScript runtime. In versions from 1.1.0 to before 4.10.2, Hono’s JWT Auth Middleware does not provide a built-in aud (Audience) verification option, which can cause confused-deputy / token-mix-up issues: an API may accept a valid token that was issued for a different audience (e.g., another service) when multiple services share the same issuer/keys. This can lead to unintended cross-service access. Hono’s docs list verification options for iss/nbf/iat/exp only, with no aud support; RFC 7519 requires that when an aud claim is present, tokens MUST be rejected unless the processing party identifies itself in that claim. This issue has been patched in version 4.10.2.

The advisory is available at github.com. This vulnerability was named CVE-2025-62610 since 10/16/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 4.10.2 eliminates this vulnerability. Applying the patch 45ba3bf9e3dff8e4bd85d6b47d4b71c8d6c66bef is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• honojs

Name

• hono

Version

• 4.10.0
• 4.10.1

License

• open-source

Website

• Product: https://github.com/honojs/hono/

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