CVE-2026-107822MariaDB: database privilege escalation via user / role name collision in the acl cache
Updated under an hour ago ()
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It affects MariaDB server and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-706, CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MariaDB server mariadb:server (from the name) | from 10.6.1, < 10.6.28; from 10.11.1, < 10.11.19; from 11.4.1, < 11.4.13; from 11.8.1, < 11.8.9; from 12.3.1, < 12.3.3; from 13.0.1, < 13.0.2 | CNA record |
mariadb mariadb mariadb:mariadb | from 10.6.1 before 10.6.28; from 10.11.1 before 10.11.19; from 11.4.1 before 11.4.13; from 11.8.1 before 11.8.9; from 12.3.1 before 12.3.3; from 13.0.1 before 13.0.2 | NVD |
References
- https://github.com/MariaDB/server/security/advisories/GHSA-2m85-2x26-36rfx-refsource-confirm, vendor-advisory
- https://github.com/MariaDB/server/commit/67ea07dd3400004e4f7ae01bf977f4344bbe064bx-refsource-misc, patch
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19x-refsource-misc, release-notes
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28x-refsource-misc, release-notes
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13x-refsource-misc, release-notes
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9x-refsource-misc, release-notes
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3x-refsource-misc, release-notes
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2x-refsource-misc, release-notes
- https://jira.mariadb.org/browse/MDEV-40541x-refsource-misc, issue-tracking
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.