Medium 4.3Published Oct 16, 2026

CVE-2026-85745MariaDB: Out-of-bound buffer read on in `ST_Area` of a multipolygon.

Updated under an hour ago (Oct 27, 2026, 3:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for MariaDB server

Exploited in the last 30 days

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.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-126
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 16, 2026

Affected products

Affected products

MariaDB server mariadb:server (from the name)	from 10.6.1, < 10.6.28; from 10.11.1, < 10.11.19; from 11.4.1, < 11.4.13; from 11.8.1, < 11.8.9; from 12.3.1, < 12.3.3; from 13.0.1, < 13.0.2	CNA record
mariadb mariadb mariadb:mariadb	from 10.6.1 before 10.6.28; from 10.11.1 before 10.11.19; from 11.4.1 before 11.4.13; from 11.8.1 before 11.8.9; from 12.3.1 before 12.3.3; 13.0.1	NVD

References

References

https://github.com/MariaDB/server/security/advisories/GHSA-p7v9-24h4-mch8	x-refsource-confirm, vendor-advisory
https://github.com/MariaDB/server/commit/2bf355e361db85153fdfba7b8a0f0d114d6a26ce	x-refsource-misc, patch
https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19	x-refsource-misc, release-notes
https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28	x-refsource-misc, release-notes
https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13	x-refsource-misc, release-notes
https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9	x-refsource-misc, release-notes
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3	x-refsource-misc, release-notes
https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2	x-refsource-misc, release-notes
https://jira.mariadb.org/browse/MDEV-40328	x-refsource-misc, issue-tracking

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.