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CVE-2026-102523

MariaDB server is a community developed fork of MySQL server

Risk score
48/100
CVSS
8.0 v3.1
Published
5 Nov 2026

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What to know

What it is
MariaDB server is a community developed fork of MySQL server. From 10.11.1 until 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, ALTER TABLE ... CONVERT ... PARTITION does not apply filename encoding to user-specified partition names before using them in filesystem path construction. An authenticated database user can …
Affected
See advisory
Fix
Upgrade the product to 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 Yellow

  • CVSS 8.0 high

References

Original description

MariaDB server is a community developed fork of MySQL server. From 10.11.1 until 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, ALTER TABLE ... CONVERT ... PARTITION does not apply filename encoding to user-specified partition names before using them in filesystem path construction. An authenticated database user can use a partition name requiring filename escaping to make the conversion operate on table files the user is not authorized to access, allowing unauthorized table reads or modifications. This issue is fixed in versions 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.

Last activity 5 Nov 2026. Patch Forecast updates every hour.