CVE-2026-85745
MEDIUM
CVSS 4.3
Published: 2026-10-16
Modified: 2026-10-16
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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.
Quick Facts
| CVE ID | CVE-2026-85745 |
| CVSS Score | 4.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| Published | 2026-10-16 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/MariaDB/server/commit/2bf355e361db85153fd…
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11…
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.…
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.…
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.…
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.…
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.…
- https://github.com/MariaDB/server/security/advisories/GHSA-p…
- https://jira.mariadb.org/browse/MDEV-40328