CVE-2026-85746
Published:October 16, 2026
Updated:October 18, 2026
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, ST_AsText can write beyond an allocated output buffer when converting deeply nested GeometryCollections because recursive WKT serialization does not account for bytes consumed or reserve sufficient space. A low-privileged remote attacker can submit a specially crafted GIS object to corrupt memory and potentially achieve code execution when combined with another vulnerability. 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.
Affected Packages
https://github.com/MariaDB/server.git (GITHUB):
Affected version(s) =mariadb-13.0.1 <mariadb-13.0.2Fix Suggestion:
Update to version mariadb-13.0.2https://github.com/MariaDB/server.git (GITHUB):
Affected version(s) >=mariadb-10.11.1 <mariadb-10.11.19Fix Suggestion:
Update to version mariadb-10.11.19https://github.com/MariaDB/server.git (GITHUB):
Affected version(s) >=mariadb-12.3.1 <mariadb-12.3.3Fix Suggestion:
Update to version mariadb-12.3.3https://github.com/MariaDB/server.git (GITHUB):
Affected version(s) >=mariadb-11.8.0 <mariadb-11.8.9Fix Suggestion:
Update to version mariadb-11.8.9https://github.com/MariaDB/server.git (GITHUB):
Affected version(s) >=mariadb-11.4.0 <mariadb-11.4.13Fix Suggestion:
Update to version mariadb-11.4.13https://github.com/MariaDB/server.git (GITHUB):
Affected version(s) >=mariadb-10.6.1 <mariadb-10.6.28Fix Suggestion:
Update to version mariadb-10.6.28Related Resources (11)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
9.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Write