# MariaDB 10.6.26 Release Notes

<a href="https://mariadb.com/downloads/community" class="button primary">Download</a> <a href="/pages/Tt5bAWk5yluYQVl7PVC5" class="button secondary">Release Notes</a> <a href="/pages/3FXNistdzXLfk2w3sbmG" class="button secondary">Changelog</a> <a href="/pages/YAt68pS41edDyVfCf4LP" class="button secondary">Overview of 10.6</a>

[<sup>*Alternate download from mariadb.org*</sup>](https://downloads.mariadb.org/mariadb/10.6.26/)

**Release date:** 18 May 2026

[MariaDB 10.6](/docs/release-notes/community-server/10.6/what-is-mariadb-106.md) is a long-term series of MariaDB, [maintained until](https://mariadb.org/about/#maintenance-policy) July 2026. It is an evolution of [MariaDB 10.5](/docs/release-notes/community-server/old-releases/10.5/what-is-mariadb-105.md) with several entirely new features.

MariaDB 10.6.26 is a [***Stable (GA)***](/docs/release-notes/community-server/about/release-criteria.md) release.

{% hint style="success" %}
**For an overview of MariaDB 10.6 see the** [**MariaDB 10.6 Changes & Improvements**](/docs/release-notes/community-server/10.6/what-is-mariadb-106.md) **page.**
{% endhint %}

Thanks, and enjoy MariaDB!

## Notable Items

### Storage Engines

#### InnoDB

* Fixed a crash in InnoDB when processing long or encoded database names in Foreign Keys ([MDEV-24356](https://jira.mariadb.org/browse/MDEV-24356))
* CREATE TABLE ... SELECT on STATS table doesn't hang anymore ([MDEV-38822](https://jira.mariadb.org/browse/MDEV-38822))
* Fixed a server assertion that occurred when an InnoDB DDL operation (such as ALTER TABLE) encountered a lock wait timeout during internal statistics updates. ([MDEV-38882](https://jira.mariadb.org/browse/MDEV-38882))
* improved performance of innodb conversion operations between big/little endian ([MDEV-39027](https://jira.mariadb.org/browse/MDEV-39027))
* An UPDATE could fail to return the error ER\_CHECKREAD when innodb\_snapshot\_isolation=ON and the transaction that had last modified the record was committed during the lock acquisition. ([MDEV-39263](https://jira.mariadb.org/browse/MDEV-39263))

#### Connect

* Invalid SRCDEF value could crash a CONNECT table ([MDEV-38892](https://jira.mariadb.org/browse/MDEV-38892))
* CONNECT OEM tables don't check subtype length ([MDEV-39281](https://jira.mariadb.org/browse/MDEV-39281))
* CONNECT REST support on Windows doesn't escape the url ([MDEV-39289](https://jira.mariadb.org/browse/MDEV-39289))

#### Mroonga

* A invalid Mroonga INDEX comment can result in a hang of the server. This has been corrected. ([MDEV-39479](https://jira.mariadb.org/browse/MDEV-39479))

### Authentication and Privilege System

* By inserting a crafted large JSON value into the mysql.global\_priv table and triggering FLUSH PRIVILEGES, the server can crash ([MDEV-39266](https://jira.mariadb.org/browse/MDEV-39266))
* FILE privilege isn't checked for derived table ([MDEV-39493](https://jira.mariadb.org/browse/MDEV-39493))

### Backup

* Fixed mariabackup to report my\_close() failures and prevent false success messages when disk space is exhausted. ([MDEV-38562](https://jira.mariadb.org/browse/MDEV-38562))

### Data Definition - Alter Table

* Fixes the issue occurred when ALTER TABLE contained duplicate DROP FOREIGN KEY operations (e.g., "DROP FOREIGN KEY f1, DROP FOREIGN KEY f1"). ([MDEV-19194](https://jira.mariadb.org/browse/MDEV-19194))
* Fix InnoDB index corruption when renaming key names with case-only differences. ([MDEV-34951](https://jira.mariadb.org/browse/MDEV-34951))
* PAGE\_COMPRESSED ALTER TABLE operations inconsistent with innodb\_file\_per\_table setting ([MDEV-37886](https://jira.mariadb.org/browse/MDEV-37886))

### Data types

* Change the "-0" results in many SELECT scenarios to just return "0". ([MDEV-38670](https://jira.mariadb.org/browse/MDEV-38670))

### Encryption

* Crash recovery may fail after a crash during an instant ALTER TABLE…PAGE\_COMPRESSED=1. Fix: make the operation rebuild the table. ([MDEV-38079](https://jira.mariadb.org/browse/MDEV-38079))

### GIS

* Empty string is erroneously allowed as a GEOMETRY column value ([MDEV-15479](https://jira.mariadb.org/browse/MDEV-15479))
* ST\_PointOnSurface returns NULL with Polygon in some case ([MDEV-35766](https://jira.mariadb.org/browse/MDEV-35766))
* Crash or incorrect result when st\_geometryfromtext, st\_geometryfromwkb, st\_geomfromgeojson were getting non-constant NULL in the second or third argument. ([MDEV-39319](https://jira.mariadb.org/browse/MDEV-39319))

### JSON

* "Warning: Memory not freed: 32" after server shutdown when SELECT COLUMN\_JSON() has been used ([MDEV-36929](https://jira.mariadb.org/browse/MDEV-36929))
* JSON search functions, JSON\_EXISTS, JSON\_EXTRACT, JSON\_VALUE, JSON\_QUERY, JSON\_CONTAINS, JSON\_CONTAINS\_PATH, JSON\_ARRAY\_APPEND, JSON\_ARRAY\_INSERT, JSON\_LENGTH, JSON\_INSERT, JSON\_REMOVE, JSON\_KEYS, could result in a overwrite of memory resulting in a crash. ([MDEV-39213](https://jira.mariadb.org/browse/MDEV-39213))

### mariabackup

* mbstream insufficient path validation ([MDEV-39408](https://jira.mariadb.org/browse/MDEV-39408))

### Platform Debian

* The Debian helper script previous tried to CHECK TABLE on all Aria/MyiSAM tables. The discovery and execution though a combination of bash and SQL escaping that resulted in incorrect table names being checked in a variety of situtions. Because Aria has crash recovery the Debian's auto-check table on startup functionality was removed. ([MDEV-34902](https://jira.mariadb.org/browse/MDEV-34902))

### Replication

* Parallel replication hang and stall due to incorrectly handled row lock conflict, missing deadlock kill ([MDEV-37133](https://jira.mariadb.org/browse/MDEV-37133))
* Replica updates table to wrong values, further replication failures ([MDEV-38731](https://jira.mariadb.org/browse/MDEV-38731))
* \[ERROR] Slave worker thread retried transaction 10 time(s) in vain, giving up. ([MDEV-38776](https://jira.mariadb.org/browse/MDEV-38776))
* Corrupted Gtid\_log\_event can cause a slave or mariadb-binlog crash ([MDEV-39404](https://jira.mariadb.org/browse/MDEV-39404))

### Server

* Fixed a server crash that could occur during query optimization when a stored procedure queries a view containing CONCAT or GROUP\_CONCAT functions. ([MDEV-36678](https://jira.mariadb.org/browse/MDEV-36678))
* Fixed critical crashes in InnoDB purge threads when processing tables with indexed virtual columns. Resolved race conditions where purge workers incorrectly reused cached TABLE\* objects across different tables in the same batch, and added retry logic to handle concurrent DDL operations that could invalidate table handles during purge processing. ([MDEV-39261](https://jira.mariadb.org/browse/MDEV-39261))

### wsrep

* wsrep unsafe handling of parameters ([MDEV-39413](https://jira.mariadb.org/browse/MDEV-39413))

### XML Functions

* ExtractValue/UpdateXML can crash due to not handling `<!` and `<?` correctly ([MDEV-39210](https://jira.mariadb.org/browse/MDEV-39210))

### Security

* Fixes for the following security vulnerabilities:
  * [CVE-2026-44168](https://www.cve.org/CVERecord?id=CVE-2026-44168)
  * [CVE-2026-44170](https://www.cve.org/CVERecord?id=CVE-2026-44170)
  * [CVE-2026-44171](https://www.cve.org/CVERecord?id=CVE-2026-44171)
  * [CVE-2026-44172](https://www.cve.org/CVERecord?id=CVE-2026-44172)
  * [CVE-2026-44173](https://www.cve.org/CVERecord?id=CVE-2026-44173)

## Changelog

For a complete list of changes made in MariaDB 10.6.26, with links to detailed information on each push, see the [changelog](/docs/release-notes/community-server/changelogs/10.6/10.6.26.md).

***

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