Vulnerability · Published Oct 16, 2026 · Assigned by GitHub_M

CVE-2026-86047MariaDB: Insufficient quoting in mariadb-dump and SHOW commands

High 7.7

In plain English

A high-severity SQL injection in server from MariaDB. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.7High

Exploit odds (30 days)0.9%top 41.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	mariadb	no fix listed	DEBIAN-CVE-2026-86047
Debian:13	mariadb	no fix listed	DEBIAN-CVE-2026-86047
Debian:14	mariadb	1:11.8.9+ds-1	DEBIAN-CVE-2026-86047
Ubuntu:24.04:LTS	mariadb	no fix listed	UBUNTU-CVE-2026-86047
Ubuntu:26.04:LTS	mariadb	no fix listed	UBUNTU-CVE-2026-86047
Ubuntu:26.10	mariadb	no fix listed	UBUNTU-CVE-2026-86047
Ubuntu:22.04:LTS	mariadb-10.6	no fix listed	UBUNTU-CVE-2026-86047

Affected products (as reported)

Vendor	Product	Versions
MariaDB	server	>= 10.6.1, < 10.6.28>= 10.11.1, < 10.11.19>= 11.4.1, < 11.4.13>= 11.8.1, < 11.8.9>= 12.3.1, < 12.3.3>= 13.0.1, < 13.0.2

Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:H

References

https://github.com/MariaDB/server/security/advisories/GHSA-wxr3-wm3p-7w6p x_refsource_CONFIRM
https://github.com/MariaDB/server/commit/2b28d1c424104429eeed43115ee6d8a803671d52 x_refsource_MISC
https://github.com/MariaDB/server/commit/3646569225758c8225e7342783d775ef7c7570e5 x_refsource_MISC
https://github.com/MariaDB/server/commit/5acb43522863c9bd6b91f354104ea247bf513e9a x_refsource_MISC
https://github.com/MariaDB/server/commit/9d4ffe23b25808f7858b2dc48106fbd60cf0e513 x_refsource_MISC
https://github.com/MariaDB/server/commit/d5d741a3076f911b468518d6b06a917593498c5b x_refsource_MISC
https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19 x_refsource_MISC
https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28 x_refsource_MISC
https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13 x_refsource_MISC
https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9 x_refsource_MISC
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3 x_refsource_MISC
https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2 x_refsource_MISC
https://jira.mariadb.org/browse/MDEV-39776 x_refsource_MISC
https://jira.mariadb.org/browse/MDEV-39818 x_refsource_MISC
https://jira.mariadb.org/browse/MDEV-40308 x_refsource_MISC
https://jira.mariadb.org/browse/MDEV-40311 x_refsource_MISC
https://jira.mariadb.org/browse/MDEV-40312 x_refsource_MISC