CVE-2026-107816
MariaDB: `qc_info` plugin can do OOB reads if query contains \0
- State
- Published
- Severity
- 6.4 Medium
- Published
- Oct 9, 2026
- Updated
- Oct 13, 2026
- Reserved
- Oct 8, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L | GitHub_M |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
serverMariaDB |
|
References
- https://github.com/MariaDB/server/security/advisories/GHSA-wfqg-88r5-55f6
- https://github.com/MariaDB/server/commit/0931994096b84ecc9ffc8eb3517c7e09e6e8631e
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2
- https://jira.mariadb.org/browse/MDEV-40670
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