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.
INFO
Published Date :
Oct. 9, 2026, 6:17 p.m.
Last Modified :
Oct. 9, 2026, 6:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-107822
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update MariaDB Server to version 10.6.28 or later.
- Update MariaDB Server to version 10.11.19 or later.
- Update MariaDB Server to version 11.4.13 or later.
- Update MariaDB Server to version 11.8.9 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-107822.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-107822 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-107822
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-107822 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-107822 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Oct. 09, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-706 Added CWE CWE-863 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/107xxx/CVE-2026-107822.json">CVE-2026-107822</a> Added Reference https://github.com/MariaDB/server/commit/67ea07dd3400004e4f7ae01bf977f4344bbe064b Added Reference https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19 Added Reference https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28 Added Reference https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13 Added Reference https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9 Added Reference https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3 Added Reference https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2 Added Reference https://github.com/MariaDB/server/security/advisories/GHSA-2m85-2x26-36rf Added Reference https://jira.mariadb.org/browse/MDEV-40541