{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-3960",
        "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
        "state": "PUBLISHED",
        "assignerShortName": "@huntr_ai",
        "dateReserved": "2026-03-11T12:52:45.232Z",
        "datePublished": "2026-04-23T08:47:48.618Z",
        "dateUpdated": "2026-04-23T12:29:32.439Z"
    },
    "containers": {
        "cna": {
            "title": "Remote Code Execution in h2oai/h2o-3",
            "providerMetadata": {
                "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
                "shortName": "@huntr_ai",
                "dateUpdated": "2026-04-23T08:47:48.618Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A critical remote code execution vulnerability exists in the unauthenticated REST API endpoint /99/ImportSQLTable in H2O-3 version 3.46.0.9 and prior. The vulnerability arises due to insufficient security controls in the parameter blacklist mechanism, which only targets MySQL JDBC driver-specific dangerous parameters. An attacker can bypass these controls by switching the JDBC URL protocol to jdbc:postgresql: and exploiting PostgreSQL JDBC driver-specific parameters such as socketFactory and socketFactoryArg. This allows unauthenticated attackers to execute arbitrary code on the H2O-3 server with the privileges of the H2O-3 process. The issue is resolved in version 3.46.0.10."
                }
            ],
            "affected": [
                {
                    "vendor": "h2oai",
                    "product": "h2oai/h2o-3",
                    "versions": [
                        {
                            "version": "unspecified",
                            "lessThan": "3.46.0.10",
                            "status": "affected",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://huntr.com/bounties/6954fe04-b905-453f-8c53-205ac8377e0d"
                },
                {
                    "url": "https://github.com/h2oai/h2o-3/commit/b9ae2d3c5220db2dc53753357a783e590364d044"
                }
            ],
            "metrics": [
                {
                    "cvssV3_0": {
                        "version": "3.0",
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "baseScore": 5.9,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "CWE-94 Improper Control of Generation of Code",
                            "cweId": "CWE-94"
                        }
                    ]
                }
            ],
            "source": {
                "advisory": "6954fe04-b905-453f-8c53-205ac8377e0d",
                "discovery": "EXTERNAL"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-23T12:25:29.022861Z",
                                "id": "CVE-2026-3960",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "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": "2026-04-23T12:29:32.439Z"
                }
            }
        ]
    }
}