{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "12.3.1"
              },
              {
                "fixed": "12.3.3"
              },
              {
                "introduced": "13.0.1"
              },
              {
                "fixed": "13.0.2"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "21a0714a118614982d20bfa504763d7247800091"
            },
            {
              "fixed": "83e909fc2a0dbc394b4b683fb3fa2d7dcf26cc5e"
            },
            {
              "introduced": "7f923870722c5d382e16d56af526d1ee4e03f987"
            },
            {
              "fixed": "620a4b5624222048fece7fe1789978ae0675cae2"
            }
          ],
          "repo": "https://github.com/mariadb/server",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-mv8g-9f7q-hprm"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-416"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85748.json"
  },
  "details": "MariaDB server is a community developed fork of MySQL server. From 12.3.1 until 12.3.3 and 13.0.2, SYS_REFCURSOR handling is affected because cursor-array reallocation can leave stale references in routine contexts. A low-privileged attacker can open a large number of SYS_REFCURSORs and then fetch one to trigger a use-after-free that can enable remote code execution when combined with another vulnerability. This issue is fixed in versions 12.3.3 and 13.0.2.",
  "id": "CVE-2026-85748",
  "modified": "2026-10-17T02:30:39.223131422Z",
  "published": "2026-10-16T16:28:55.829Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85748.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/MariaDB/server/commit/91156c3de58762196605150ab3f756fe952592d1"
    },
    {
      "type": "FIX",
      "url": "https://github.com/MariaDB/server/commit/9b075b2cb53338f67e7230cc585e02d2d34514ed"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/MariaDB/server/security/advisories/GHSA-mv8g-9f7q-hprm"
    },
    {
      "type": "WEB",
      "url": "https://jira.mariadb.org/browse/MDEV-40396"
    },
    {
      "type": "WEB",
      "url": "https://jira.mariadb.org/browse/MDEV-40639"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85748"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "MariaDB: Use-after-free with a large number of SYS_REFCURSOR's"
}