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CVE PROGRAM SOURCE RECORD6.4 Medium

CVE-2026-107822

MariaDB: database privilege escalation via user / role name collision in the acl cache

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

MariaDB server

  • >= 10.6.1, < 10.6.28affected
  • >= 10.11.1, < 10.11.19affected
  • >= 11.4.1, < 11.4.13affected
  • >= 11.8.1, < 11.8.9affected
  • >= 12.3.1, < 12.3.3affected
  • >= 13.0.1, < 13.0.2affected

References