CVE-2026-107822: CWE-706: Use of Incorrectly-Resolved Name or Reference in MariaDB server
Description
MariaDB server versions from 10.6.1 up to but not including 10.6.28, 10.11.1 up to 10.11.19, 11.4.1 up to 11.4.13, 11.8.1 up to 11.8.9, 12.3.1 up to 12.3.3, and 13.0.1 up to 13.0.2 contain a vulnerability in the ACL cache. The cache could generate identical database-privilege cache keys for role and localhost user names that matched due to an empty IP component. An attacker with CREATE USER privileges could exploit this to gain privileges assigned to another account. This issue has been fixed in the specified fixed versions.
CVSS v3.1
Score 6.4medium
Affected software
MariaDB
server
pkg:github/mariadb/serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-107822 describes a vulnerability in MariaDB server's ACL cache where the cache key generation for database privileges could collide between role and localhost user names if both had an empty IP component. This flaw allows an attacker with CREATE USER privileges to create a principal that collides with an existing one, potentially enabling privilege escalation by exercising privileges assigned to the other account. The vulnerability affects multiple MariaDB versions starting from 10.6.1 through various branches, with fixes applied in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
Potential Impact
An attacker with the ability to create users could exploit this vulnerability to gain unauthorized privileges by leveraging the cache key collision in the ACL system. This could lead to privilege escalation, compromising confidentiality, integrity, and availability of the database server.
Mitigation Recommendations
This vulnerability is fixed in MariaDB versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2. Users should upgrade to these versions or later to remediate the issue. No other mitigation guidance is provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-08T21:23:59.823Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac9291c2cdf04f656734fa4
Added to database: 10/09/2026, 17:49:16 UTC
Last enriched: 10/09/2026, 18:03:42 UTC
Last updated: 10/09/2026, 18:57:31 UTC
Views: 6
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