CVE-2026-24398
Medium · 4.8CVSS
4.8
EPSS
0.4%
Published
Jan 27, 2026
CISA due date
—
The record
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.11.7, IP Restriction Middleware in Hono is vulnerable to an IP address validation bypass. The `IPV4_REGEX` pattern and `convertIPv4ToBinary` function in `src/utils/ipaddr.ts` do not properly validate that IPv4 octet values are within the valid range of 0-255, allowing attackers to craft malformed IP addresses that bypass IP-based access controls. Version 4.11.7 contains a patch for the issue.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | hono | 0 | 4.11.7 |
| Chainguard | hono | 0 | 0 |
| Chainguard | langfuse-3-worker | 0 | 3.153.0-r0 |
| Chainguard | langfuse-fips-3-worker | 0 | 3.152.0-r0 |
| Chainguard | librechat | 0 | 0.8.2-r1 |
| Wolfi | langfuse-3-worker | 0 | 3.153.0-r0 |
Related vulnerabilities
- GHSA-r354-f388-2fhh Hono IPv4 address validation bypass in IP Restriction Middleware allows IP spoofing Same vulnerability
- CVE-2026-54288 Hono is a Web application framework that provides support for any JavaScript runtime. Also affects hono
- CVE-2026-54289 Hono is a Web application framework that provides support for any JavaScript runtime. Also affects hono
- CVE-2026-54286 Hono is a Web application framework that provides support for any JavaScript runtime. Also affects hono
- CVE-2026-54290 Hono is a Web application framework that provides support for any JavaScript runtime. Also affects hono
- CVE-2026-54287 Hono is a Web application framework that provides support for any JavaScript runtime. Also affects hono
- GHSA-rv63-4mwf-qqc2 hono: Body Limit Middleware can be bypassed on AWS Lambda by understating `Content-Length` Also affects hono
- GHSA-wgpf-jwqj-8h8p hono: Lambda@Edge adapter keeps only the last value of a repeated request header… Also affects hono