AIKIDO-2026-10774
hono is vulnerable to Improper Input Validation
38
Low Risk
This Affects:
honoTL;DR
JWT verification accepts malformed NumericDate claims for exp, nbf, and iat in some non-compliant value forms. Falsy, non-finite, or non-numeric values can bypass intended time-based checks instead of being rejected. This weakens token lifetime and not-before validation when malformed claims are introduced. The fix enforces strict NumericDate validation and rejects invalid claim types and values during verify-time checks.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
hono is vulnerable to Improper Input Validation in versions 0.0.1 - 4.12.16.
How to fix this
Upgrade the hono library to the patch version.
Are You Affected?
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SOC 2Compliant
ISO 27001Compliant