UBUNTU-CVE-2026-119281 (CVE-2026-119281)
Vulnerability from osv_ubuntu – Published: 2026-10-30 00:00 – Updated: 2026-10-30 00:00 – Source website
VLAI
Details
MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.11, the connector assumed result bytes were UTF-8 but guarded only changes to character_set_client. It did not reject non-UTF-8 character_set_results changes and relied on the server's global session_track_system_variables configuration to report character-set changes. A malicious or compromised server, or a machine-in-the-middle attacker, could suppress tracking or change the result charset so application strings differed from the returned bytes, potentially defeating application-side validation or escaping that depended on the decoded values. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.
Severity
5.9 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmariadb-java",
"binary_version": "2.3.0-1~18.04"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "mariadb-connector-java",
"purl": "pkg:deb/ubuntu/mariadb-connector-java@2.3.0-1~18.04?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.3.0-1~18.04"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmariadb-java",
"binary_version": "2.5.3-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "mariadb-connector-java",
"purl": "pkg:deb/ubuntu/mariadb-connector-java@2.5.3-1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.2-1build2",
"2.5.3-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmariadb-java",
"binary_version": "2.7.4-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "mariadb-connector-java",
"purl": "pkg:deb/ubuntu/mariadb-connector-java@2.7.4-1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.7.2-1",
"2.7.4-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmariadb-java",
"binary_version": "2.7.6-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "mariadb-connector-java",
"purl": "pkg:deb/ubuntu/mariadb-connector-java@2.7.6-1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.7.6-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmariadb-java",
"binary_version": "2.7.6-1build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.10",
"name": "mariadb-connector-java",
"purl": "pkg:deb/ubuntu/mariadb-connector-java@2.7.6-1build1?arch=source\u0026distro=stonking"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.7.6-1build1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmariadb-java",
"binary_version": "2.7.6-1build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "mariadb-connector-java",
"purl": "pkg:deb/ubuntu/mariadb-connector-java@2.7.6-1build1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.7.6-1",
"2.7.6-1build1"
]
}
],
"aliases": [],
"details": "MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.11, the connector assumed result bytes were UTF-8 but guarded only changes to character_set_client. It did not reject non-UTF-8 character_set_results changes and relied on the server\u0027s global session_track_system_variables configuration to report character-set changes. A malicious or compromised server, or a machine-in-the-middle attacker, could suppress tracking or change the result charset so application strings differed from the returned bytes, potentially defeating application-side validation or escaping that depended on the decoded values. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.",
"id": "UBUNTU-CVE-2026-119281",
"modified": "2026-10-30T00:00:00Z",
"published": "2026-10-30T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-119281"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-119281"
},
{
"type": "REPORT",
"url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/af5e565eb171cfc66ea8e948ddc616abed0c4623"
},
{
"type": "REPORT",
"url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/d51b968c1b795c73d24e0b3f960205b7bc82d423"
},
{
"type": "REPORT",
"url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/fdabe74a7df6dce1d6c099f4d0ca1e2acc25919a"
},
{
"type": "REPORT",
"url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7"
},
{
"type": "REPORT",
"url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5"
},
{
"type": "REPORT",
"url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11"
},
{
"type": "REPORT",
"url": "https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-grfq-r75j-rw9x"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-119281"
]
}
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