CVE-2026-44459

{
    "cve": {
        "id": "CVE-2026-44459",
        "cveTags": [],
        "metrics": {
            "cvssMetricV31": [
                {
                    "type": "Secondary",
                    "source": "security-advisories@github.com",
                    "cvssData": {
                        "scope": "UNCHANGED",
                        "version": "3.1",
                        "baseScore": 3.8,
                        "attackVector": "NETWORK",
                        "baseSeverity": "LOW",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N",
                        "integrityImpact": "LOW",
                        "userInteraction": "NONE",
                        "attackComplexity": "LOW",
                        "availabilityImpact": "NONE",
                        "privilegesRequired": "HIGH",
                        "confidentialityImpact": "LOW"
                    },
                    "impactScore": 2.5,
                    "exploitabilityScore": 1.2
                }
            ]
        },
        "published": "2026-05-13T16:16:57.970",
        "references": [
            {
                "url": "https://github.com/honojs/hono/security/advisories/GHSA-hm8q-7f3q-5f36",
                "tags": [
                    "Vendor Advisory"
                ],
                "source": "security-advisories@github.com"
            }
        ],
        "vulnStatus": "Analyzed",
        "weaknesses": [
            {
                "type": "Primary",
                "source": "security-advisories@github.com",
                "description": [
                    {
                        "lang": "en",
                        "value": "CWE-1284"
                    }
                ]
            }
        ],
        "descriptions": [
            {
                "lang": "en",
                "value": "Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.18, improper validation of the JWT NumericDate claims exp, nbf, and iat in hono/utils/jwt allows tokens with non-spec-compliant claim values to silently bypass time-based checks. This issue is not exploitable by an anonymous attacker; it only manifests when a malformed claim value reaches verify() \u2014 typically when the application itself issues such tokens, or when the signing key is otherwise under attacker control. This vulnerability is fixed in 4.12.18."
            }
        ],
        "lastModified": "2026-05-13T18:21:48.107",
        "configurations": [
            {
                "nodes": [
                    {
                        "negate": false,
                        "cpeMatch": [
                            {
                                "criteria": "cpe:2.3:a:hono:hono:*:*:*:*:*:node.js:*:*",
                                "vulnerable": true,
                                "matchCriteriaId": "5AB1A6FC-8475-4A23-9E63-46F3E6C5D264",
                                "versionEndExcluding": "4.12.18"
                            }
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                        "operator": "OR"
                    }
                ]
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        ],
        "sourceIdentifier": "security-advisories@github.com"
    }
}