CVE-2026-119281 (GCVE-0-2026-119281)

Vulnerability from cvelistv5 – Published: 2026-10-29 20:58 – Updated: 2026-10-29 20:58
VLAI
Title
MariaDB Connector/J: Server could switch character_set_results away from UTF-8 without the client noticing
Summary
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)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-838 - Inappropriate Encoding for Output Context
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8083 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
mariadb-corporation mariadb-connector-j Affected: >= 3.0.0, < 3.3.7
Affected: >= 3.4.0, < 3.4.5
Affected: >= 3.5.0, < 3.5.11
guessed Create a notification for this product.
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{
  "containers": {
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          "product": "mariadb-connector-j",
          "vendor": "mariadb-corporation",
          "versions": [
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              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.3.7"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.4.0, \u003c 3.4.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.5.0, \u003c 3.5.11"
            }
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          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
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      "providerMetadata": {
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        "shortName": "GitHub_M"
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          "tags": [
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        },
        {
          "name": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7",
          "tags": [
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          "url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7"
        },
        {
          "name": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5",
          "tags": [
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          "url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5"
        },
        {
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      ],
      "source": {
        "advisory": "GHSA-grfq-r75j-rw9x",
        "discovery": "UNKNOWN"
      },
      "title": "MariaDB Connector/J: Server could switch character_set_results away from UTF-8 without the client noticing"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-119281",
    "datePublished": "2026-10-29T20:58:39.322Z",
    "dateReserved": "2026-10-29T18:50:28.064Z",
    "dateUpdated": "2026-10-29T20:58:39.322Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-10-31",
      "epss": "0.00283",
      "percentile": "0.20902"
    },
    "nvd": {
      "cve": {
        "affected": [
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            "affectedData": [
              {
                "product": "mariadb-connector-j",
                "vendor": "mariadb-corporation",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 3.0.0, \u003c 3.3.7"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 3.4.0, \u003c 3.4.5"
                  },
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                  }
                ]
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        ],
        "cveTags": [],
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          }
        ],
        "id": "CVE-2026-119281",
        "lastModified": "2026-10-30T17:18:03.880",
        "metrics": {
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            "url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7"
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            "url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5"
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              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
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    }
  }
}



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