{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-107819",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-08T21:23:59.823Z",
        "datePublished": "2026-10-09T17:25:45.082Z",
        "dateUpdated": "2026-10-09T17:59:15.334Z"
    },
    "containers": {
        "cna": {
            "title": "MariaDB Connector/C: libmariadb allowed cleartext password leakage on TLS hostname verification failure",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-297",
                            "lang": "en",
                            "description": "CWE-297: Improper Validation of Certificate with Host Mismatch",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 5.9,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/MariaDB/server/security/advisories/GHSA-fmq9-qjxj-qpf7",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/MariaDB/server/security/advisories/GHSA-fmq9-qjxj-qpf7"
                },
                {
                    "name": "https://github.com/mariadb-corporation/mariadb-connector-c/commit/e8c0a16d94ddf844668d684a7d42b37ac8e0fc02",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/mariadb-corporation/mariadb-connector-c/commit/e8c0a16d94ddf844668d684a7d42b37ac8e0fc02"
                },
                {
                    "name": "https://github.com/mariadb-corporation/mariadb-connector-c/releases/tag/v3.4.10",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/mariadb-corporation/mariadb-connector-c/releases/tag/v3.4.10"
                },
                {
                    "name": "https://jira.mariadb.org/browse/CONC-846",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://jira.mariadb.org/browse/CONC-846"
                }
            ],
            "affected": [
                {
                    "vendor": "MariaDB",
                    "product": "server",
                    "versions": [
                        {
                            "version": ">= 3.4.1, < 3.4.10",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-09T17:25:45.082Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "MariaDB Connector/C is a C and C++ client library for connecting applications to MariaDB and MySQL databases. From 3.4.1 until 3.4.10, the MariaDB Connector/C libmariadb Zero-Configuration SSL authentication-switch logic checked certificate trust failure but did not reject a TLS hostname verification mismatch before selecting a non-hashing authentication plugin. An active man-in-the-middle attacker with a valid certificate for another hostname could request mysql_clear_password and obtain the database password inside the attacker-controlled TLS connection. Other MariaDB connectors are not affected. This issue is fixed in version 3.4.10."
                }
            ],
            "source": {
                "advisory": "GHSA-fmq9-qjxj-qpf7",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-09T17:59:07.078424Z",
                                "id": "CVE-2026-107819",
                                "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": "2026-10-09T17:59:15.334Z"
                }
            }
        ]
    }
}