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CVE-2026-85746 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_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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.9 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/MariaDB/server/commit/5c04ca5524385356ff7cf84974a7d491974c1f85	[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-8fvj-c57c-pggx	[email protected]	Vendor Advisory
https://jira.mariadb.org/browse/MDEV-40329	[email protected]	Issue Tracking

see all 9 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[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 16, 2026	CVE Modified	CISA-ADP
Oct 16, 2026	New CVE Received	[email protected]