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, the #mysql50# bypass prefix is affected because it allows the #mysql50# prefix to bypass normal table-name filesystem encoding. An attacker can trigger the issue with a table name using the #mysql50# prefix, then use a #mysql50# table name to access files under their legacy unencoded name and cause crashes, data corruption, data exfiltration, or remote code execution. 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.
Fix
Public exploits 1
- SeanDishman/mariadb-cve-2026-92262 PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/MariaDB/server/commit/574ba66b2d6c5d71db83d416677876e9b592858e Patch
- https://github.com/MariaDB/server/commit/f277eefa424850a8cba5c2371406047f6395e8bb Patch
- https://github.com/MariaDB/server/security/advisories/GHSA-65jj-h265-3m7h Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 3
- Cpes+2 CPE criteria (now 2)NVD modified 2026-10-20 15:32
- StatusUndergoing Analysis → AnalyzedNVD modified 2026-10-20 15:32
- First seenCVSS 9.9NVD modified 2026-10-16 18:09
Affected (CPE criteria) 2
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*cpe:2.3:a:mariadb:mariadb:13.0.1:*:*:*:*:*:*:*
References 10
- https://github.com/MariaDB/server/commit/574ba66b2d6c5d71db83d416677876e9b592858e Patch
- https://github.com/MariaDB/server/commit/f277eefa424850a8cba5c2371406047f6395e8bb Patch
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19 Release Notes
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28 Release Notes
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13 Release Notes
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9 Release Notes
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3 Release Notes
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2 Release Notes
- https://github.com/MariaDB/server/security/advisories/GHSA-65jj-h265-3m7h Vendor Advisory
- https://jira.mariadb.org/browse/MDEV-40362 Issue Tracking