CVE-2026-107822
mariadb: MariaDB: Privilege escalation via ACL cache key collision
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 10, 2026
Updated · October 20, 2026
Description
A flaw was found in MariaDB. An issue in the Access Control List (ACL) cache causes identical privilege cache keys to be generated when a role and a local user share the same name. An attacker with user creation privileges can exploit this key collision by creating a matching account, allowing them to gain unauthorized access and exercise the database privileges of the targeted account.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.4CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
CWE-694 · Use of Multiple Resources with Duplicate Identifier