Update dependency hono to v4.9.7 [SECURITY]

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This PR contains the following updates:

Package	Change	Age	Confidence
hono (source)	4.9.6 -> 4.9.7

GitHub Vulnerability Alerts

CVE-2025-59139

Summary

A flaw in the bodyLimit middleware could allow bypassing the configured request body size limit when conflicting HTTP headers were present.

Details

The middleware previously prioritized the Content-Length header even when a Transfer-Encoding: chunked header was also included. According to the HTTP specification, Content-Length must be ignored in such cases. This discrepancy could allow oversized request bodies to bypass the configured limit.

Most standards-compliant runtimes and reverse proxies may reject such malformed requests with 400 Bad Request, so the practical impact depends on the runtime and deployment environment.

Impact

If body size limits are used as a safeguard against large or malicious requests, this flaw could allow attackers to send oversized request bodies. The primary risk is denial of service (DoS) due to excessive memory or CPU consumption when handling very large requests.

Resolution

The implementation has been updated to align with the HTTP specification, ensuring that Transfer-Encoding takes precedence over Content-Length. The issue is fixed in Hono v4.9.7, and all users should upgrade immediately.

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Release Notes

honojs/hono (hono)

v4.9.7

Compare Source

Security

• Fixed an issue in the bodyLimit middleware where the body size limit could be bypassed when both Content-Length and Transfer-Encoding headers were present. If you are using this middleware, please update immediately. Security Advisory

What's Changed

• fix(client): Fix parseResponse not parsing json in react native by @​lr0pb in #​4399
• chore: add .tool-versions file by @​3w36zj6 in #​4397
• chore: update bun install commands to use --frozen-lockfile by @​3w36zj6 in #​4398
• test(jwk): Add tests of JWK token verification by @​buckett in #​4402

New Contributors

• @​lr0pb made their first contribution in #​4399
• @​buckett made their first contribution in #​4402

Full Changelog: honojs/hono@v4.9.6...v4.9.7

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