CVE-2026-24398 | THREATINT

Description

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.

PUBLISHED Reserved 2026-01-22 | Published 2026-01-27 | Updated 2026-01-27 | Assigner GitHub_M

MEDIUM: 4.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Problem types

CWE-185: Incorrect Regular Expression

Product status

< 4.11.7

affected

References

github.com/...s/hono/security/advisories/GHSA-r354-f388-2fhh

github.com/...ommit/edbf6eea8e6c26a3937518d4ed91d8666edeec37

github.com/honojs/hono/releases/tag/v4.11.7

cve.org (CVE-2026-24398)

nvd.nist.gov (CVE-2026-24398)

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