chore(deps): update dependency hono to v4.10.2 [security]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
hono (source)	4.9.10 -> 4.10.2

GitHub Vulnerability Alerts

GHSA-m732-5p4w-x69g

Improper Authorization in Hono (JWT Audience Validation)

Hono’s JWT authentication middleware did not validate the aud (Audience) claim by default. As a result, applications using the middleware without an explicit audience check could accept tokens intended for other audiences, leading to potential cross-service access (token mix-up).

The issue is addressed by adding a new verification.aud configuration option to allow RFC 7519–compliant audience validation. This change is classified as a security hardening improvement, but the lack of validation can still be considered a vulnerability in deployments that rely on default JWT verification.

Recommended secure configuration

You can enable RFC 7519–compliant audience validation using the new verification.aud option:

import { Hono } from 'hono'
import { jwt } from 'hono/jwt'

const app = new Hono()

app.use(
  '/api/*',
  jwt({
    secret: 'my-secret',
    verification: {
      // Require this API to only accept tokens with aud = 'service-a'
      aud: 'service-a',
    },
  })
)

Below is the original description by the reporter. For security reasons, it does not include PoC reproduction steps, as the vulnerability can be clearly understood from the technical description.

---

The original description by the reporter

Summary

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.

Note: This problem likely exists in the JWK/JWKS-based middleware as well (e.g., jwk / verifyWithJwks)

Details

• The middleware’s verifyOptions enumerate only iss, nbf, iat, and exp; there is no aud option. The same omission appears in the JWT Helper’s “Payload Validation” list. Developers relying on the middleware for complete standards-aligned validation therefore won’t check audience by default.
• Standards requirement: RFC 7519 §4.1.3 states that each principal intended to process the JWT MUST identify itself with a value in the aud claim; if it does not, the JWT MUST be rejected (when aud is present). Lack of a first-class aud check increases the risk that tokens issued for Service B are accepted by Service A.
• Real-world effect: In deployments with a single IdP/JWKS and shared keys across multiple services, a token minted for one audience can be mistakenly accepted by another audience unless developers implement a custom audience check.
  • For example, with Google Identity (OIDC), iss is always https://accounts.google.com (shared across apps), but aud differs per application because it is that app’s OAuth client ID; therefore, an attacker can host a separate service that supports “Sign in with Google,” obtain a valid ID token (JWT) for the victim user, and—if your API does not verify aud—use that token to access your API with the victim’s privileges.

Impact

Type: Authentication/authorization weakness via token mix-up (confused-deputy).

Who is impacted: Any Hono user who:

• shares an issuer/keys across multiple services (common with a single IdP/JWKS)
• distinguishes tokens by intended recipient using aud.

What can happen:

• Cross-service access: A token for Service B may be accepted by Service A.
• Boundary erosion: ID tokens and access tokens, or separate API audiences, can be inadvertently intermixed.
  • This may causes unauthorized invocation of sensitive endpoints.

Recommended remediation:

1. Add verifyOptions.aud (string | string[] | RegExp) to the middleware and enforce RFC 7519 semantics: In verify method, if aud is present and does not match with specified audiences, reject.
2. Ensure equivalent aud handling exists in the JWK/JWKS flow (jwk middleware / verifyWithJwks) so users of external IdPs can enforce audience consistently.

---

Release Notes

honojs/hono (hono)

v4.10.2

Compare Source

v4.10.1

Compare Source

What's Changed

• fix(types): cannot .use non-return mw from createMiddleware by @​NamesMT in #​4465

Full Changelog: honojs/hono@v4.10.0...v4.10.1

v4.10.0

Compare Source

Release Notes

Hono v4.10.0 is now available!

This release brings improved TypeScript support and new utilities.

The main highlight is the enhanced middleware type definitions that solve a long-standing issue with type safety for RPC clients.

Middleware Type Improvements

Imagine the following app:

import { Hono } from 'hono'

const app = new Hono()

const routes = app.get(
  '/',
  (c) => {
    return c.json({ errorMessage: 'Error!' }, 500)
  },
  (c) => {
    return c.json({ message: 'Success!' }, 200)
  }
)

The client with RPC:

import { hc } from 'hono/client'

const client = hc<typeof routes>('/')

const res = await client.index.$get()

if (res.status === 500) {
}

if (res.status === 200) {
}

Previously, it couldn't infer the responses from middleware, so a type error was thrown.

Now the responses are correctly typed.

---

This was a long-standing issue and we were thinking it was super difficult to resolve it. But now come true.

Thank you for the great work @​slawekkolodziej!

cloneRawRequest Utility

The new cloneRawRequest utility allows you to clone the raw Request object after it has been consumed by validators or middleware.

import { cloneRawRequest } from 'hono/request'

app.post('/api', async (c) => {
  const body = await c.req.json()

  // Clone the consumed request
  const clonedRequest = cloneRawRequest(c.req)
  await externalLibrary.process(clonedRequest)
})

Thanks @​kamaal111!

New features

• feat(types): passing middleware types #​4393
• feat(ssg): add default plugin that defines the recommended behavior #​4394
• feat(request): add cloneRawRequest utility for request cloning #​4382

All changes

• feat(types): passing middleware types by @​slawekkolodziej in #​4393
• feat(ssg): add default plugin that defines the recommended behavior by @​3w36zj6 in #​4394
• feat(request): add cloneRawRequest utility for request cloning by @​kamaal111 in #​4382
• fix(proxy): Correct hop-by-hop header handling per RFC 9110 by @​sugar-cat7 in #​4459

New Contributors

• @​slawekkolodziej made their first contribution in #​4393
• @​kamaal111 made their first contribution in #​4382

Full Changelog: honojs/hono@v4.9.12...v4.10.0

v4.9.12

Compare Source

What's Changed

• refactor: internal structure of PreparedRegExpRouter for optimization and added tests by @​usualoma in #​4456
• refactor: use protected methods instead of computed properties to allow tree shaking by @​usualoma in #​4458

Full Changelog: honojs/hono@v4.9.11...v4.9.12

v4.9.11

Compare Source

What's Changed

• fix(types): fix 4.9.8 regression by @​aadito123 in #​4448
• feat(reg-exp-router): Introduced PreparedRegExpRouter by @​usualoma in #​1796

New Contributors

• @​aadito123 made their first contribution in #​4448

Full Changelog: honojs/hono@v4.9.10...v4.9.11

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	hono@​4.9.10 ⏵ 4.10.2			+1	+1

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