CVE-2026-86047: mariadb SQL Injection — Fix

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.

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CVSS v3.1 Score

7.7

HIGH

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

EPSS — Exploit Prediction

0.0086

Probability of exploitation

0.59%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-89 SQL Injection

Affected Products

Vendor	Product	Versions
mariadb	mariadb	10.6.1 — 10.6.28
mariadb	mariadb	10.11.1 — 10.11.19
mariadb	mariadb	11.4.1 — 11.4.13
mariadb	mariadb	11.8.1 — 11.8.9
mariadb	mariadb	12.3.1 — 12.3.3
mariadb	mariadb	All

References

Advisories & Patches

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 https://github.com/MariaDB/server/security/advisories/GHSA-wxr3-wm3p-7w6p

Other References

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-39776 https://jira.mariadb.org/browse/MDEV-39818 https://jira.mariadb.org/browse/MDEV-40308 https://jira.mariadb.org/browse/MDEV-40311

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 7.7 (HIGH).

How severe is CVE-2026-86047? +

CVE-2026-86047 has a CVSS v3.1 score of 7.7 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0086, placing it in the 1th percentile for exploitation probability.

What products are affected by CVE-2026-86047? +

CVE-2026-86047 affects products from mariadb, specifically: mariadb. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-86047? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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