Critical 9.9Published Oct 16, 2026

CVE-2026-92262MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass.

Updated under an hour ago (2026-10-19 04:50 UTC)

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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, 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.

CVSS: 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-706
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: Awaiting Analysis
Record last updated: Oct 16, 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

References

https://github.com/MariaDB/server/security/advisories/GHSA-65jj-h265-3m7hx-refsource-confirm
https://github.com/MariaDB/server/commit/574ba66b2d6c5d71db83d416677876e9b592858ex-refsource-misc
https://github.com/MariaDB/server/commit/f277eefa424850a8cba5c2371406047f6395e8bbx-refsource-misc
https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19x-refsource-misc
https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28x-refsource-misc
https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13x-refsource-misc
https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9x-refsource-misc
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3x-refsource-misc
https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2x-refsource-misc
https://jira.mariadb.org/browse/MDEV-40362x-refsource-misc

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.