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6.4 Medium

CVE-2026-107822 MariaDB server is a community developed fork of MySQL server

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, 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.

Affected products and versions

Product Affected versions Fixed in
server 13.0 13.0.1 → < 13.0.2 13.0.2
server 12.3 12.3.1 → < 12.3.3 12.3.3
server 11.8 11.8.1 → < 11.8.9 11.8.9
server 11.4 11.4.1 → < 11.4.13 11.4.13
server 10.11 10.11.1 → < 10.11.19 10.11.19
server 10.6 10.6.1 → < 10.6.28 10.6.28

References

Timeline

  1. Published
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Other CVEs of server

The 27 CVEs of server →
CVE-2026-102523 MariaDB server: Authorization bypass via ALTER TABLE ... CONVERT ... PARTITION 8.0 High CVE-2026-86047 MariaDB server is a community developed fork of MySQL server 7.7 High CVE-2026-85745 MariaDB server is a community developed fork of MySQL server 4.3 Medium CVE-2026-85748 MariaDB server is a community developed fork of MySQL server 9.9 Critical
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