CVE-2026-92262 (GCVE-0-2026-92262)

Vulnerability from cvelistv5 – Published: 2026-10-16 16:25 – Updated: 2026-10-16 16:25
VLAI
Title
MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass.
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 #mysql50# bypass prefix is affected because it allows the #mysql50# prefix to bypass normal table-name filesystem encoding. An attacker can trigger the issue with a table name using the #mysql50# prefix, then use a #mysql50# table name to access files under their legacy unencoded name and cause crashes, data corruption, data exfiltration, or 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
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-706 - Use of Incorrectly-Resolved Name or Reference
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7771 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 #mysql50# bypass prefix is affected because it allows the #mysql50# prefix to bypass normal table-name filesystem encoding. An attacker can trigger the issue with a table name using the #mysql50# prefix, then use a #mysql50# table name to access files under their legacy unencoded name and cause crashes, data corruption, data exfiltration, or 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": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-706",
              "description": "CWE-706: Use of Incorrectly-Resolved Name or Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-16T16:25:46.964Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/MariaDB/server/security/advisories/GHSA-65jj-h265-3m7h",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/MariaDB/server/security/advisories/GHSA-65jj-h265-3m7h"
        },
        {
          "name": "https://github.com/MariaDB/server/commit/574ba66b2d6c5d71db83d416677876e9b592858e",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MariaDB/server/commit/574ba66b2d6c5d71db83d416677876e9b592858e"
        },
        {
          "name": "https://github.com/MariaDB/server/commit/f277eefa424850a8cba5c2371406047f6395e8bb",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MariaDB/server/commit/f277eefa424850a8cba5c2371406047f6395e8bb"
        },
        {
          "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-40362",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jira.mariadb.org/browse/MDEV-40362"
        }
      ],
      "source": {
        "advisory": "GHSA-65jj-h265-3m7h",
        "discovery": "UNKNOWN"
      },
      "title": "MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass."
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-92262",
    "datePublished": "2026-10-16T16:25:46.964Z",
    "dateReserved": "2026-09-15T22:16:18.049Z",
    "dateUpdated": "2026-10-16T16:25:46.964Z",
    "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 #mysql50# bypass prefix is affected because it allows the #mysql50# prefix to bypass normal table-name filesystem encoding. An attacker can trigger the issue with a table name using the #mysql50# prefix, then use a #mysql50# table name to access files under their legacy unencoded name and cause crashes, data corruption, data exfiltration, or 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-2026-92262",
        "lastModified": "2026-10-16T18:09:12.750",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.9,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.1,
              "impactScore": 6.0,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-16T17:17:52.710",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/MariaDB/server/commit/574ba66b2d6c5d71db83d416677876e9b592858e"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/MariaDB/server/commit/f277eefa424850a8cba5c2371406047f6395e8bb"
          },
          {
            "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-65jj-h265-3m7h"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://jira.mariadb.org/browse/MDEV-40362"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-706"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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