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CVE-2026-24398 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CNA: [email protected]CVSS-B:4.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/honojs/hono/commit/edbf6eea8e6c26a3937518d4ed91d8666edeec37	[email protected]	Patch
https://github.com/honojs/hono/releases/tag/v4.11.7	[email protected]	Release Notes
https://github.com/honojs/hono/security/advisories/GHSA-r354-f388-2fhh	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-185	Incorrect Regular Expression	[email protected]

Affected Products

Product	Versions
hono hono	< 4.11.7
CPE cpe:2.3:a:hono:hono::::::node.js::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Feb 4, 2026	Initial Analysis	[email protected]
Jan 27, 2026	New CVE Received	[email protected]