{"id":"CVE-2026-107385","aliases":["BIT-mariadb-2026-107385","BIT-mariadb-min-2026-107385","BIT-mysql-client-2026-107385","GHSA-r3rv-jm3r-62q2"],"url":"https://o3.security/vulnerability/CVE-2026-107385","summary":"MariaDB Connector/Node.js: SQL injection in the text protocol when the session uses NO_BACKSLASH_ESCAPES","details":"### Description\nWhen escaping string and binary parameters for the text protocol, the connector always escaped the quote character with a backslash, without ever consulting the session's NO_BACKSLASH_ESCAPES SQL mode. The server status flag was declared (STATUS_NO_BACKSLASH_ESCAPES) but never read.\n\nUnder a server or session running with NO_BACKSLASH_ESCAPES, the backslash is an ordinary character and the quote must be escaped by doubling it. The escaped value produced by the connector therefore closed the string literal, and a value passed through a placeholder was interpreted as SQL.\n\nAll text-protocol escaping entry points were affected, including Connection.escape().\n\n### Impact\nAn attacker able to influence any value the application passes as a query parameter could execute arbitrary SQL with the privileges of the application's database user: read, modify or delete any data reachable by that connection.\n\nExposure requires a deployment where NO_BACKSLASH_ESCAPES is enabled — server-wide, through the connector's sessionVariables / initSql options, or by an application-issued SET sql_mode. It is not implied by the ANSI, ORACLE or TRADITIONAL compound modes on MariaDB 11.4, so it has to be set deliberately. Where it is enabled, no unusual application code is needed: the standard placeholder API is the injection point.\n\nexecute() and batch() are not affected: the binary prepared-statement and bulk protocols send parameter values out of band.\n\n### Resolution\nThe escaping routines now branch on the session status flag, doubling the quote and leaving the backslash untouched when NO_BACKSLASH_ESCAPES is set\n\n### Workarounds\nUse execute() or batch(), or do not enable NO_BACKSLASH_ESCAPES, until upgraded.\n\n### Credit\nReported by fg0x0.","published":"2026-10-08T18:38:29.490Z","modified":"2026-10-21T02:54:36.925151847Z","cvss":{"score":7.4,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"mariadb","fixedVersion":"3.2.5"},{"ecosystem":"npm","name":"mariadb","fixedVersion":"3.3.4"},{"ecosystem":"npm","name":"mariadb","fixedVersion":"3.4.7"},{"ecosystem":"npm","name":"mariadb","fixedVersion":"3.5.4"}],"fix":{"url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/6995c8cf8e51b2ad055de63dcaa4094eebbef5ce","label":"mariadb-corporation/mariadb-connector-nodejs@6995c8c"},"references":[{"type":"WEB","url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.2.5"},{"type":"WEB","url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.3.4"},{"type":"WEB","url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.4.7"},{"type":"WEB","url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.4"},{"type":"WEB","url":"https://hackerone.com/reports/3889197"},{"type":"WEB","url":"https://jira.mariadb.org/browse/CONJS-368"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107385.json"},{"type":"ADVISORY","url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/security/advisories/GHSA-r3rv-jm3r-62q2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107385"},{"type":"FIX","url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/6995c8cf8e51b2ad055de63dcaa4094eebbef5ce"},{"type":"FIX","url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/7670d90949307e735c0ae148d80b3776478a599d"},{"type":"FIX","url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/95886df9fa0cca991e2be339caa6c3979be61553"},{"type":"FIX","url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/e5a9d732d9574177749488336319b73074072779"},{"type":"PACKAGE","url":"https://github.com/mariadb-corporation/mariadb-connector-nodejs"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:54:36.925151847Z"}}