AIKIDO-2026-10776
hono is vulnerable to Sensitive Information Disclosure
53
Medium Risk
This Affects:
honoTL;DR
The cache middleware can cache responses that vary by Authorization or Cookie without skipping storage for per-user variants. A response generated for one authenticated user can then be reused for a different user under shared cache keys. This can expose user-specific data to unintended recipients. The fix treats Vary: Authorization and Vary: Cookie as cache-skip signals so user-scoped responses are not shared.
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 Sensitive Information Disclosure 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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