Vulnerability in Mariadb Server
CVE-2026-92262
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Mariadb Server — versions >= 10.11.1, < 10.11.19, >= 10.6.1, < 10.6.28, >= 11.4.1, < 11.4.13
Weakness classification (CWE)
References
- github.com/MariaDB/server/security/advisories/GHSA-65jj-h265-3m7h
- github.com/MariaDB/server/commit/574ba66b2d6c5d71db83d416677876e9b592858e
- github.com/MariaDB/server/commit/f277eefa424850a8cba5c2371406047f6395e8bb
- github.com/MariaDB/server/releases/tag/mariadb-10.11.19
- github.com/MariaDB/server/releases/tag/mariadb-10.6.28
- github.com/MariaDB/server/releases/tag/mariadb-11.4.13
- github.com/MariaDB/server/releases/tag/mariadb-11.8.9
- github.com/MariaDB/server/releases/tag/mariadb-12.3.3
- github.com/MariaDB/server/releases/tag/mariadb-13.0.2
- jira.mariadb.org/browse/MDEV-40362
Frequently asked questions
- What is CVE-2026-92262?
- CVE-2026-92262 is a critical-severity vulnerability in Mariadb Server, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 9.9/10. Published 2026-10-16.
- How severe is CVE-2026-92262?
- Critical severity. CVSS v3 base score is 9.9 out of 10.