All vulnerabilities
CVE-2026-107822GHSA-2m85-2x26-36rf

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

MariaDB serverDatabases
Open in ThreatlineRecord JSON
CVSS
6.4Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.48%Chance of exploitation activity in the next 30 days, higher than 40% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published9 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 6

  • serveraffected: >= 10.6.1, < 10.6.28CVE List
  • serveraffected: >= 10.11.1, < 10.11.19CVE List
  • serveraffected: >= 11.4.1, < 11.4.13CVE List
  • serveraffected: >= 11.8.1, < 11.8.9CVE List
  • serveraffected: >= 12.3.1, < 12.3.3CVE List
  • serveraffected: >= 13.0.1, < 13.0.2CVE List

References 9