CVE-2026-85746
MariaDB server is a community developed fork of MySQL server
- Risk score
- 69/100
- CVSS
- 9.9 v3.1
- Exploit chance (30 days)
- 0.6%
- Published
- 16 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 reseā¦
- Affected
- Mariadb before 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, 13.0.2
- Fix
- Upgrade Mariadb to 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3 or 13.0.2 (whichever matches your release line), or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.9 critical
References
- https://github.com/MariaDB/server/commit/5c04ca5524385356ff7cf84974a7d491974c1f85
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2
- https://github.com/MariaDB/server/security/advisories/GHSA-8fvj-c57c-pggx
- https://jira.mariadb.org/browse/MDEV-40329
Original 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.
Last activity 16 Oct 2026. Patch Forecast updates every hour.