{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-44459",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-05-06T15:49:25.193Z",
        "datePublished": "2026-05-13T15:02:23.872Z",
        "dateUpdated": "2026-06-23T15:52:56.009Z"
    },
    "containers": {
        "cna": {
            "title": "Hono: Improper validation of NumericDate claims (exp, nbf, iat) in JWT verify()",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-1284",
                            "lang": "en",
                            "description": "CWE-1284: Improper Validation of Specified Quantity in Input",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 3.8,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "HIGH",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/honojs/hono/security/advisories/GHSA-hm8q-7f3q-5f36",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/honojs/hono/security/advisories/GHSA-hm8q-7f3q-5f36"
                }
            ],
            "affected": [
                {
                    "vendor": "honojs",
                    "product": "hono",
                    "versions": [
                        {
                            "version": "< 4.12.18",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-05-13T15:02:23.872Z"
            },
            "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() — 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."
                }
            ],
            "source": {
                "advisory": "GHSA-hm8q-7f3q-5f36",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-13T18:36:22.194803Z",
                                "id": "CVE-2026-44459",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-23T15:52:56.009Z"
                }
            }
        ]
    }
}