CVE-2026-24398

MEDIUM EPSS 23.2%
Published Jan 27, 20265mo ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Jan 27, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
6.5
Exploitability
3.9
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
23.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-185

Affected Products 1

VendorProductVersionRange
honohono* <4.11.7

References 3

  • github.com https://github.com/honojs/hono/commit/edbf6eea8e6c26a3937518d4ed91d8666edeec37
    Patch
  • github.com https://github.com/honojs/hono/releases/tag/v4.11.7
    Release Notes
  • github.com https://github.com/honojs/hono/security/advisories/GHSA-r354-f388-2fhh
    Vendor Advisory

Remediation

  • github.com https://github.com/honojs/hono/commit/edbf6eea8e6c26a3937518d4ed91d8666edeec37
    Patch