CVE-2026-24398

{"id": "CVE-2026-24398", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.2}]}, "published": "2026-01-27T19:16:16.363", "references": [{"url": "https://github.com/honojs/hono/commit/edbf6eea8e6c26a3937518d4ed91d8666edeec37", "source": "security-advisories@github.com"}, {"url": "https://github.com/honojs/hono/releases/tag/v4.11.7", "source": "security-advisories@github.com"}, {"url": "https://github.com/honojs/hono/security/advisories/GHSA-r354-f388-2fhh", "source": "security-advisories@github.com"}], "vulnStatus": "Undergoing Analysis", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-185"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-01-29T16:31:35.700", "sourceIdentifier": "security-advisories@github.com"}