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    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-109334",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-10-12T14:18:12.389Z",
        "datePublished": "2026-10-12T16:05:22.448Z",
        "dateUpdated": "2026-10-12T16:05:22.448Z"
    },
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                "dateUpdated": "2026-10-12T16:05:22.448Z"
            },
            "datePublic": "2026-09-28T00:00:00.000Z",
            "title": "SurrealDB before 3.3.0 Cross-Tenant Access via Surreal-NS/Surreal-DB Headers and RPC use",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "SurrealDB before 3.3.0 does not check the caller-selected namespace or database against the level at which a namespace- or database-level system user authenticated, allowing cross-tenant access. An authenticated attacker can set the Surreal-NS/Surreal-DB headers on /sql or call the RPC use method to read, create, modify, and delete rows and read DEFINE PARAM values in another tenant where table PERMISSIONS allow it."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Authorization Bypass Through User-Controlled Key",
                            "cweId": "CWE-639",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "surrealdb",
                    "product": "surrealdb",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:cargo/surrealdb",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "3.3.0"
                        },
                        {
                            "version": "3.3.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
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                            "operator": "OR",
                            "negate": false,
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "3.3.0"
                                }
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            "metrics": [
                {
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                    "cvssV4_0": {
                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.6,
                        "baseSeverity": "HIGH"
                    }
                },
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                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "NONE",
                        "baseScore": 8.1,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://github.com/surrealdb/surrealdb/security/advisories/GHSA-w5v9-jc5f-5rmc",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "name": "GitHub Security Advisory (GHSA-w5v9-jc5f-5rmc)"
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                {
                    "name": "VulnCheck Advisory: SurrealDB before 3.3.0 Cross-Tenant Access via Surreal-NS/Surreal-DB Headers and RPC use",
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                    "url": "https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-cross-tenant-access-via-surreal-ns-surreal-db-headers-and-rpc-use"
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                    "value": "thaidn",
                    "type": "reporter"
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                "engine": "vulncheck-endgame"
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}