CVE-2026-107823: mariadb Improper Encoding — 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, the MariaDB view FRM parser did not safely encode embedded newline characters in a username. An account with CREATE USER and CREATE VIEW WITH GRANT OPTION could create a crafted username containing additional view metadata, causing the parser to interpret part of the username as security metadata and potentially escalating database privileges. 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

7.2

HIGH

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

EPSS — Exploit Prediction

0.0079

Probability of exploitation

0.56%

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-116 CWE-116

CWE-144 CWE-144

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	13.0.1 — 13.0.2

References

Advisories & Patches

https://github.com/MariaDB/server/commit/8a642bc8103aadc6b2087d781ba8e1595616a2c4 https://github.com/MariaDB/server/security/advisories/GHSA-g2q2-3936-cp37

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-40484

Frequently Asked Questions

What is CVE-2026-107823? +

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 MariaDB view FRM parser did not safely encode embedded newline characters in a username. An account with CREATE USER and CREATE VIEW WITH GRANT OPTION could create a crafted username containing additional view metadata, causing the parser to interpret part of the username as security metadata and potentially escalating database privileges. 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 7.2 (HIGH).

How severe is CVE-2026-107823? +

CVE-2026-107823 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0079, placing it in the 1th percentile for exploitation probability.

What products are affected by CVE-2026-107823? +

CVE-2026-107823 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-2026-107823? +

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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