CVE-2026-107815 (GCVE-0-2026-107815)

Vulnerability from cvelistv5 – Published: 2026-10-09 16:05 – Updated: 2026-10-09 16:05
VLAI
Title
MariaDB: one byte OOB write in DOS tables of the CONNECT engine
Summary
MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the CONNECT engine's DOS table type used an incorrect boundary check that permitted a one-byte null write beyond a stack buffer at an attacker-controlled offset. An authenticated user able to use the CONNECT engine could cause a crash and potentially remote code execution. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
Severity
8.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7642 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
MariaDB server Affected: >= 10.6.1, < 10.6.28
Affected: >= 10.11.1, < 10.11.19
Affected: >= 11.4.1, < 11.4.13
Affected: >= 11.8.1, < 11.8.9
Affected: >= 12.3.1, < 12.3.3
Affected: >= 13.0.1, < 13.0.2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "server",
          "vendor": "MariaDB",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 10.6.1, \u003c 10.6.28"
            },
            {
              "status": "affected",
              "version": "\u003e= 10.11.1, \u003c 10.11.19"
            },
            {
              "status": "affected",
              "version": "\u003e= 11.4.1, \u003c 11.4.13"
            },
            {
              "status": "affected",
              "version": "\u003e= 11.8.1, \u003c 11.8.9"
            },
            {
              "status": "affected",
              "version": "\u003e= 12.3.1, \u003c 12.3.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 13.0.1, \u003c 13.0.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the CONNECT engine\u0027s DOS table type used an incorrect boundary check that permitted a one-byte null write beyond a stack buffer at an attacker-controlled offset. An authenticated user able to use the CONNECT engine could cause a crash and potentially remote code execution. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787: Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-09T16:05:49.046Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/MariaDB/server/security/advisories/GHSA-4wgx-ffg9-jrwq",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/MariaDB/server/security/advisories/GHSA-4wgx-ffg9-jrwq"
        },
        {
          "name": "https://github.com/MariaDB/server/commit/b369925f6855d3e1f0ebcf453492724b99fda6f8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MariaDB/server/commit/b369925f6855d3e1f0ebcf453492724b99fda6f8"
        },
        {
          "name": "https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19"
        },
        {
          "name": "https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28"
        },
        {
          "name": "https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13"
        },
        {
          "name": "https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9"
        },
        {
          "name": "https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3"
        },
        {
          "name": "https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2"
        },
        {
          "name": "https://jira.mariadb.org/browse/MDEV-40637",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jira.mariadb.org/browse/MDEV-40637"
        }
      ],
      "source": {
        "advisory": "GHSA-4wgx-ffg9-jrwq",
        "discovery": "UNKNOWN"
      },
      "title": "MariaDB: one byte OOB write in DOS tables of the CONNECT engine"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-107815",
    "datePublished": "2026-10-09T16:05:49.046Z",
    "dateReserved": "2026-10-08T21:23:59.822Z",
    "dateUpdated": "2026-10-09T16:05:49.046Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "server",
                "vendor": "MariaDB",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 10.6.1, \u003c 10.6.28"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 10.11.1, \u003c 10.11.19"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 11.4.1, \u003c 11.4.13"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 11.8.1, \u003c 11.8.9"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 12.3.1, \u003c 12.3.3"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 13.0.1, \u003c 13.0.2"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the CONNECT engine\u0027s DOS table type used an incorrect boundary check that permitted a one-byte null write beyond a stack buffer at an attacker-controlled offset. An authenticated user able to use the CONNECT engine could cause a crash and potentially remote code execution. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2."
          }
        ],
        "id": "CVE-2026-107815",
        "lastModified": "2026-10-09T17:41:29.727",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 6.0,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-09T17:16:45.970",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/MariaDB/server/commit/b369925f6855d3e1f0ebcf453492724b99fda6f8"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/MariaDB/server/security/advisories/GHSA-4wgx-ffg9-jrwq"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://jira.mariadb.org/browse/MDEV-40637"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-10-09T16:45:09+00:00",
      "cve": "CVE-2026-107815",
      "id": "CVE-2026-107815",
      "initial_release_date": "2026-10-09T16:05:49.046000+00:00",
      "product_status:known_affected": "155",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "mariadb: mariadb: Arbitrary code execution via CONNECT engine out-of-bounds write",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-107815.json",
      "version": "3"
    }
  }
}



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Nomenclature

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