{"id":"CVE-2026-119276","published":"2026-10-29T21:17:20.907","lastModified":"2026-10-29T21:17:20.907","description":"MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.11, when CLIENT_SESSION_TRACK was negotiated, the OkPacket.parse() and OkPacket.parseWithInfo() paths allocated byte arrays using server-declared lengths for the OK packet info field and session-state variable names and values before confirming that the bytes remained in the packet. A malicious or compromised server, or a machine-in-the-middle attacker, could send a small OK packet declaring a much larger length and repeatedly force attacker-controlled heap allocations before the subsequent copy failed. This could create garbage-collection pressure or an OutOfMemoryError in the client application. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.","cvssScore":5.9,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-130","CWE-789"],"vendors":[],"products":[],"references":[{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/b9e1ee8d9b4d820d70719504cdfd5c97f1aede5f","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/beb445fcf9294113878fc05ac77f0efdf0596ac6","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/ea8c7b6537e50053444188a9a3fd9cae99550f56","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-h599-m3w5-9m7x","tags":[]}],"exploitRefs":[{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/b9e1ee8d9b4d820d70719504cdfd5c97f1aede5f","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/beb445fcf9294113878fc05ac77f0efdf0596ac6","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/ea8c7b6537e50053444188a9a3fd9cae99550f56","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-h599-m3w5-9m7x","tags":[]}],"hasPoc":true,"ai":null}