{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-41248",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-04-18T03:47:03.136Z",
        "datePublished": "2026-04-24T21:04:35.810Z",
        "dateUpdated": "2026-04-24T21:04:35.810Z"
    },
    "containers": {
        "cna": {
            "title": "Official Clerk JavaScript SDKs:  Middleware-based route protection bypass",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-436",
                            "lang": "en",
                            "description": "CWE-436: Interpretation Conflict",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-863",
                            "lang": "en",
                            "description": "CWE-863: Incorrect Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 9.1,
                        "baseSeverity": "CRITICAL",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/clerk/javascript/security/advisories/GHSA-vqx2-fgx2-5wq9",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/clerk/javascript/security/advisories/GHSA-vqx2-fgx2-5wq9"
                }
            ],
            "affected": [
                {
                    "vendor": "clerk",
                    "product": "astro",
                    "versions": [
                        {
                            "version": ">= 0.0.1, < 1.5.7",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2.0.0-snapshot.v20241206174604, <= 2.17.9",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.0.0, < 3.0.15",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "clerk",
                    "product": "nextjs",
                    "versions": [
                        {
                            "version": ">= 5.0.0, < 5.7.6",
                            "status": "affected"
                        },
                        {
                            "version": ">= 6.0.0-snapshot.vb87a27f, < 6.39.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 7.0.0, < 7.2.1",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "clerk",
                    "product": "nuxt",
                    "versions": [
                        {
                            "version": ">= 1.1.0, < 1.13.28",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2.0.0, < 2.2.2",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "clerk",
                    "product": "shared",
                    "versions": [
                        {
                            "version": ">= 2.20.17, < 2.22.1",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.0.0-canary.v20250225091530, < 3.47.4",
                            "status": "affected"
                        },
                        {
                            "version": ">= 4.0.0, < 4.8.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-04-24T21:04:35.810Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Clerk JavaScript is the official JavaScript repository for Clerk authentication. createRouteMatcher in @clerk/nextjs, @clerk/nuxt, and @clerk/astro can be bypassed by certain crafted requests, allowing them to skip middleware gating and reach downstream handlers. This vulnerability is fixed in @clerk/astro 1.5.7, 2.17.10, and 3.0.15; @clerk/nextjs 5.7.6, 6.39.2, and 7.2.1; @clerk/nuxt 1.13.28 and 2.2.2; and @clerk/shared 2.22.1, 3.47.4, anc 4.8.1"
                }
            ],
            "source": {
                "advisory": "GHSA-vqx2-fgx2-5wq9",
                "discovery": "UNKNOWN"
            }
        }
    }
}