v4.11.7

honojs/honov4.11.7Jan 27, 2026by yusukebe

AI Summary

Major security release fixing four vulnerabilities across IP restriction, cache middleware, serve static, and ErrorBoundary components.

Key Highlights

Fixed IP Restriction middleware IPv4 validation bypass (CVE-2026-24398)
Fixed Cache middleware ignoring Cache-Control: private (CVE-2026-24472)
Fixed Serve Static Cloudflare Workers arbitrary key read (CVE-2026-24473)
Fixed ErrorBoundary XSS vulnerability (GHSA-9r54-q6cx-xmh5)

New Features

Security: IP Restriction bypass fix
Security: Cache middleware privacy fix
Security: Serve Static arbitrary key read fix
Security: ErrorBoundary XSS fix

Full Release Notes

# Security Release

This release includes security fixes for multiple vulnerabilities in Hono and related middleware. We recommend upgrading if you are using any of the affected components.

## Components

### IP Restriction Middleware

Fixed an IPv4 address validation bypass that could allow IP-based access control to be bypassed under certain configurations.

### Cache Middleware

Fixed an issue where responses marked with `Cache-Control: private` or `no-store` could be cached, potentially leading to information disclosure on some runtimes.

### Serve Static Middleware (Cloudflare Workers adapter)

Fixed an issue that could allow unintended access to internal asset keys when serving static files with user-controlled paths.

### hono/jsx `ErrorBoundary`

Fixed a reflected Cross-Site Scripting (XSS) issue in the `ErrorBoundary` component that could occur when untrusted strings were rendered without proper escaping.

## Recommendation

Users are encouraged to upgrade to this release, especially if they:

- Use IP Restriction Middleware
- Use Cache Middleware on Deno, Bun, or Node.js
- Use Serve Static Middleware with user-controlled paths on Cloudflare Workers
- Render untrusted data inside `ErrorBoundary` components

## Security Advisories & CVEs

- **IP Restriction Middleware – IPv4 address validation bypass**
  - Advisory: https://github.com/honojs/hono/security/advisories/GHSA-r354-f388-2fhh
  - CVE: CVE-2026-24398

- **Cache Middleware ignores `Cache-Control: private`**
  - Advisory: https://github.com/honojs/hono/security/advisories/GHSA-6wqw-2p9w-4vw4
  - CVE: CVE-2026-24472

- **Serve Static Middleware (Cloudflare Workers adapter) – Arbitrary key read**
  - Advisory: https://github.com/honojs/hono/security/advisories/GHSA-w332-q679-j88p
  - CVE: CVE-2026-24473

- **hono/jsx `ErrorBoundary` – Cross-Site Scripting (XSS)**
  - Advisory: https://github.com/honojs/hono/security/advisories/GHSA-9r54-q6cx-xmh5
  - CVE: Pending

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**Full Changelog**: https://github.com/honojs/hono/compare/v4.11.6...v4.11.7