Auth bypass in Mariadb Server
CVE-2026-107822
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, MariaDB's ACL cache could generate the same database-privilege cache key for role and localhost user names that matched because both used an empty IP component. An attacker with CREATE USER could create the colliding principal and, when the original principal's database privileges were cached, exercise privileges assigned to the other account. 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.
Published .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Mariadb Server — versions >= 10.11.1, < 10.11.19, >= 10.6.1, < 10.6.28, >= 11.4.1, < 11.4.13
Weakness classification (CWE)
References
- github.com/MariaDB/server/security/advisories/GHSA-2m85-2x26-36rf
- github.com/MariaDB/server/commit/67ea07dd3400004e4f7ae01bf977f4344bbe064b
- github.com/MariaDB/server/releases/tag/mariadb-10.11.19
- github.com/MariaDB/server/releases/tag/mariadb-10.6.28
- github.com/MariaDB/server/releases/tag/mariadb-11.4.13
- github.com/MariaDB/server/releases/tag/mariadb-11.8.9
- github.com/MariaDB/server/releases/tag/mariadb-12.3.3
- github.com/MariaDB/server/releases/tag/mariadb-13.0.2
- jira.mariadb.org/browse/MDEV-40541
Frequently asked questions
- What is CVE-2026-107822?
- CVE-2026-107822 is a medium-severity vulnerability in Mariadb Server, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 6.4/10. Published 2026-10-09.
- How severe is CVE-2026-107822?
- Medium severity. CVSS v3 base score is 6.4 out of 10.