Bug 2554205 (CVE-2026-92262) - CVE-2026-92262 mariadb: MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass.
Summary: CVE-2026-92262 mariadb: MariaDB: Numerous issues caused by historical #mysql5...
Keywords:
Status: NEW
Alias: CVE-2026-92262
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2559711 2559713 2559736
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-16 16:41 UTC by OSIDB Bzimport
Modified: 2026-10-23 13:26 UTC (History)
9 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-16 16:41:48 UTC 
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.
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