CVE-2026-86047

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.

CVSS 3.1

7.7CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-25)

CWE

CWE-89

Published

2026-10-16

Modified

2026-10-20

Record from

the NVD, synced 2026-10-21

Affected

• mariadb:mariadb

References

• https://github.com/MariaDB/server/commit/2b28d1c424104429eeed43115ee6d8a803671d52
• https://github.com/MariaDB/server/commit/3646569225758c8225e7342783d775ef7c7570e5
• https://github.com/MariaDB/server/commit/5acb43522863c9bd6b91f354104ea247bf513e9a
• https://github.com/MariaDB/server/commit/9d4ffe23b25808f7858b2dc48106fbd60cf0e513
• https://github.com/MariaDB/server/commit/d5d741a3076f911b468518d6b06a917593498c5b

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