{"id":"BIT-mariadb-min-2026-107383","revision":null,"records":[{"revision":"3e5e189bb4ed45c4b742abdca0252a33","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107383","aliases":[],"title":"MariaDB Connector/Node.js exposes uninitialized process memory through malformed GeoJSON parameters","description":"MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases. Prior to 3.2.5, 3.3.4, 3.4.7, and 3.5.4, the GeoJSON Polygon and MultiPolygon binary encoders size a Buffer.allocUnsafe() allocation from each ring's numeric length before confirming that the ring is an array. A malformed non-array ring can therefore reserve bytes that the writing loop skips, and the connector sends the full buffer through execute() or batch(), disclosing uninitialized Node.js heap data into a database value. The persisted data can include other users' content, session material, database credentials, or TLS key material and may propagate to backups and replicas. The text-protocol query() path is not affected. 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Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-107383","identifiers":["CVE-2026-107383"]},"retained":false,"historicalAffected":[]},{"revision":"0a19125688444156ba0c878e46917ffb","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-48qf-xh34-q73r","aliases":["BIT-mariadb-2026-107383","BIT-mariadb-min-2026-107383","BIT-mysql-client-2026-107383","CVE-2026-107383"],"title":"MariaDB Connector/Node.js exposes uninitialized process memory through malformed GeoJSON parameters","description":"### Description\nWhen encoding a GeoJSON Polygon or MultiPolygon parameter for the binary protocol, the connector sized its output buffer from the length property of each ring, then wrote each ring only if it was a real array. The two loops disagreed: any non-array ring carrying a numeric length (a string, or an object such as {\"length\": 4000}) still reserved 4 + 16 * length bytes, but wrote none of them. The buffer came from Buffer.allocUnsafe() and was returned in full regardless of how far the write position had advanced, so every reserved-but-unwritten byte was uninitialized Node.js heap.\n\nThe sibling LineString case handled this correctly, aborting with null on the first malformed point, so no reserved byte could escape unwritten.\n\nThe only gate on this path is value.type naming a GeoJSON type, so any object shaped like {\"type\": \"Polygon\", ...} reached the encoder.\n\n### Impact\nAn application that passes an attacker-influenced object as a parameter to execute() or batch() writes uninitialized process memory into the database, where it is readable by anyone who can read that row and persists into backups and replicas. Applications accepting GeoJSON for map or location features are the natural case, as the attacker controls coordinates directly.\n\nThe disclosed memory is not scoped to the requesting user: in a shared Node.js process the heap may hold other users' request and response bodies, session tokens and cookies, database credentials and TLS key material. The leak is silent — the insert succeeds and the column simply holds more bytes than it should.\n\nNo non-default connector option and no particular server configuration are required. query() is not affected: the text encoder builds geometry as strings rather than through Buffer.allocUnsafe().\n\n### Resolution\nBoth the Polygon and MultiPolygon encoders now reject a non-array ring before reserving space for it, so no byte of the allocation can be left uninitialized by the writing loop, matching the existing LineString behaviour.\n\n### \nWorkarounds\nValidate that GeoJSON coordinates are properly nested arrays of numbers before passing the object as a parameter, or use query(), until upgraded.","state":0,"publishedAt":"2026-10-08T19:42:11+00:00","modifiedAt":"2026-10-16T09:55:42.8233249+00:00","affected":[{"ecosystem":"npm","name":"mariadb","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.2.5"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"mariadb","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"3.3.0"},{"kind":"fixed","version":"3.3.4"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"mariadb","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"3.4.0"},{"kind":"fixed","version":"3.4.7"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"mariadb","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"3.5.0-rc.0"},{"kind":"fixed","version":"3.5.4"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/mariadb-corporation/mariadb-connector-nodejs/security/advisories/GHSA-48qf-xh34-q73r","https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/2314c03b785db482599d2befd06f4992e5fc46b3","https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/a4aa048b57dc47309b80e5cc25a4a8eedb32fd9f","https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/b2ca628864b0fc2e3e94ea96910f6b693ad5bd30","https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/faa27d1b2b7753a54000f586d5148089b60d1284","https://github.com/mariadb-corporation/mariadb-connector-nodejs","https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.2.5","https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.3.4","https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.4.7","https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.4","https://jira.mariadb.org/browse/CONJS-367"],"sourceUrl":"https://github.com/advisories/GHSA-48qf-xh34-q73r","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-48qf-xh34-q73r","identifiers":["GHSA-48qf-xh34-q73r","BIT-mariadb-2026-107383","BIT-mariadb-min-2026-107383","BIT-mysql-client-2026-107383","CVE-2026-107383"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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