CVE-2026-85745

Medium

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, ST_Area reads beyond the allocated buffer when processing invalid WKB for a MultiPolygon because the multi-polygon parser advances past a nested geometry header without first verifying enough input remains. A low-privileged remote attacker can supply malformed spatial data to disclose memory useful for bypassing ASLR as part of a multi-vulnerability chain. 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.

SeverityMedium
CVSS4.3
Exploit probability—
ProductMariadb
PublishedOct 16, 2026
First seenOct 16, 2026
Weakness typeCWE-126CWE-126

How to fix

Update
  • mariadb mariadb10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3 or later

Affected products

ProductAffected versionsFixed in
mariadb mariadb10.6.1 ≤ v < 10.6.28, 10.11.1 ≤ v < 10.11.19, 11.4.1 ≤ v < 11.4.13, 11.8.1 ≤ v < 11.8.9, 12.3.1 ≤ v < 12.3.3, 13.0.110.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3

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