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CVE-2026-85745 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/MariaDB/server/commit/2bf355e361db85153fdfba7b8a0f0d114d6a26ce	[email protected]	Patch
https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19	[email protected]	Release Notes
https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28	[email protected]	Release Notes
https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13	[email protected]	Release Notes
https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9	[email protected]	Release Notes
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3	[email protected]	Release Notes
https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2	[email protected]	Release Notes
https://github.com/MariaDB/server/security/advisories/GHSA-p7v9-24h4-mch8	[email protected]	Vendor Advisory
https://jira.mariadb.org/browse/MDEV-40328	[email protected]	Issue Tracking

see all 9 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-126	Buffer Over-read	[email protected]

Affected Products

Product	Versions
mariadb mariadb	>= 10.6.1, < 10.6.28 >= 10.11.1, < 10.11.19 >= 11.4.1, < 11.4.13 >= 11.8.1, < 11.8.9 >= 12.3.1, < 12.3.3
CPE cpe:2.3:a:mariadb:mariadb:::::::: cpe:2.3:a:mariadb:mariadb:13.0.1:::::::* Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Oct 20, 2026	Initial Analysis	[email protected]
Oct 19, 2026	CVE Modified	CISA-ADP
Oct 16, 2026	New CVE Received	[email protected]