CVE-2026-86047
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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, SHOW CREATE SERVER, SHOW CREATE USER, and mariadb-dump are affected because each does not consistently quote identifiers and values when serializing SQL. A low-privileged attacker can trigger the issue when an attacker-created object with crafted identifiers or values is included in SHOW output or a dump, then create an object with crafted identifiers or values so generated SQL contains injected statements and execute attacker-injected SQL when the poisoned output is applied. 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.
Quick Facts
| CVE ID | CVE-2026-86047 |
| CVSS Score | 7.7 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:H |
| Published | 2026-10-16 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/MariaDB/server/commit/2b28d1c424104429eee…
- https://github.com/MariaDB/server/commit/3646569225758c8225e…
- https://github.com/MariaDB/server/commit/5acb43522863c9bd6b9…
- https://github.com/MariaDB/server/commit/9d4ffe23b25808f7858…
- https://github.com/MariaDB/server/commit/d5d741a3076f911b468…
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11…
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.…
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.…
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.…
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.…