CVE-2026-55855
CVE-2026-55855 · MariaDB Connector/Node.js: Possible SQL injection in Buffer parameter escaping under big5/gbk/sjis/cp932/gb18030 client charsets
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases. Prior to 3.2.4, 3.3.3, 3.4.6, and 3.5.3, MariaDB Connector/Node.js permits SQL injection when attacker-controlled Buffer parameters are escaped client-side under the big5, gbk, sjis, cp932, or gb18030 client character sets. PacketOutputStream.writeBufferEscape in lib/io/packet-output-stream.js escaped bytes without the charset-aware getMbRecognizer logic in lib/misc/charset-mb.js. The server SQL lexer runs my_ismbchar before escape processing, so an attacker-controlled lead byte can consume the inserted 0x5C backslash as a multibyte trail byte and leave the following 0x27 quote unescaped, terminating the string literal and allowing arbitrary SQL. The default utf8mb4 character set and parameters sent through the execute binary prepared-statement path are not affected. Successful exploitation can expose or modify data available to the database account. This issue is fixed in versions 3.2.4, 3.3.3, 3.4.6, and 3.5.3.
CVSS 6.5 · Moyenne · EPSS 0,7% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node · database
Produits et versions concernés
mariadb-connector-nodejs
- Versions du logiciel
- < 3.2.4: Concernée
- >= 3.3.0, < 3.3.3: Concernée
- >= 3.4.0, < 3.4.6: Concernée
- >= 3.5.0, < 3.5.3: Concernée
Aucun correctif publié
mariadb npm
- Plages de versions concernées
- SEMVER: < 3.2.4
Mettez à jour vers 3.2.4
mariadb npm
- Plages de versions concernées
- SEMVER: ≥ 3.3.0, < 3.3.4
Mettez à jour vers 3.3.4
mariadb npm
- Plages de versions concernées
- SEMVER: ≥ 3.4.0, < 3.4.6
Mettez à jour vers 3.4.6
mariadb npm
- Plages de versions concernées
- SEMVER: ≥ 3.5.0, < 3.5.3
Mettez à jour vers 3.5.3
Sources originales
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/security/advisories/GHSA-g5xc-5w98-jfvm
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/25c6239b68fd909132355c3f8535a5ef32423468
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/26e35f9edb00bcf249627a564e0052fba7b305a2
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/7af8b7b8b7ae5e1a081693ade989f5a80c8e06e3
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/97f183f33b5d4e6767b34ecabdd81fe3294a80a6
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.2.4
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.3.3
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.4.6
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.3
- https://jira.mariadb.org/browse/CONJS-350
- https://nvd.nist.gov/vuln/detail/CVE-2026-55855