CVE-2026-107816

MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the qc_info plugin could be confused by a query containing embedded null bytes. Reading information_schema.query_cache_info after such a query was cached could access data beyond the end of a heap-allocated buffer, potentially disclosing adjacent memory or crashing the server. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.

• https://github.com/MariaDB/server/commit/0931994096b84ecc9ffc8eb3517c7e09e6e8631ePatch
• https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19Release Notes
• https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28Release Notes
• https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13Release Notes
• https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9Release Notes
• https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3Release Notes
• https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2Release Notes
• https://github.com/MariaDB/server/security/advisories/GHSA-wfqg-88r5-55f6Vendor Advisory
• https://jira.mariadb.org/browse/MDEV-40670Issue Tracking