KB5093420 - Cumulative Update 26 for SQL Server 2022

Release Date:   July 16, 2026
Version:   16.0.4265.3

Summary

This article describes Cumulative Update package 26 (CU26) for Microsoft SQL Server 2022. This update contains 12 fixes that were issued after the release of SQL Server 2022 Cumulative Update 25. It updates components in the following builds:

  • SQL Server - Product version: 16.0.4265.3, file version: 2022.160.4265.3
  • Analysis Services - Product version: 16.0.43.252, file version: 2022.160.43.252

Important

To help secure SQL Server on Windows, enable encryption with Extended Protection.

Known issues in this update

Incorrect behavior of SESSION_CONTEXT in parallel plans

Queries that use the built-in SESSION_CONTEXT function might return incorrect results or trigger access violation (AV) dump files when they're run in parallel query plans. This issue occurs because of the manner in which SESSION_CONTEXT interacts with parallel execution threads, particularly if the session is reset for reuse.

For more information, see the "Known issues" section in SESSION_CONTEXT.

Linked server queries that use MSDASQL fail with error 7416

Linked server queries that use the MSDASQL (OLE DB Provider for ODBC Drivers) provider and specify a provider string (@provstr) fail and return the following error message:

Msg 7416, Level 16
Access to the remote server is denied because no login-mapping exists.

A stricter connection validation check in the Database Engine can reject connections for certain linked server configurations that use the MSDASQL provider, even if earlier builds allowed those connections.

For more information and workarounds, see Linked server queries that use MSDASQL fail with error 7416.

Improvements and fixes included in this update

A downloadable Microsoft Excel workbook that contains a summary list of builds, together with their current support lifecycle, is available. The Excel file also contains detailed fix lists for SQL Server 2022, SQL Server 2019, and SQL Server 2017. Download this Excel file now.

Note

Individual entries in the following table can be referenced directly through a bookmark. If you select any bug reference ID in the table, a bookmark tag is added to the URL by using the "#NNNNNNN" format. You can then share this URL with others so that they can jump directly to the desired fix in the table.

For more information about the bugs that are fixed and enhancements that are included in this cumulative update, see the following table.

Bug Reference Description Fix area Component Platform
5132800 Adds more detailed error information to the Windows Server Failover Cluster log if the availability group resource DLL can't retrieve diagnostic column information. SQL Server Engine High Availability and Disaster Recovery Windows
5138995 Adds support for removing an IP address from an availability group listener by using the ALTER AVAILABILITY GROUP ... MODIFY LISTENER ... REMOVE IP command. SQL Server Engine High Availability and Disaster Recovery Windows
5196012 Fixes a SQL injection vulnerability in the sys.sp_MSforeachdb stored procedure that allows an authorized attacker to elevate privileges over a network. SQL Server Engine Management Services All
5197074 Fixes an issue in which an index rebuild maintenance plan stops responding because of a long-running query. SQL Server Engine Maintenance Plan All
5216517 Fixes an issue in which monitoring queries that use sys.dm_exec_requests or sys.sysprocesses intermittently fail and return error "976" or "978" on a secondary replica in an availability group. SQL Server Engine High Availability and Disaster Recovery Windows
5219564 Fixes an issue in the interpolation calculation of the new cardinality estimator for very large values that can cause an ALTER INDEX operation to choose a serial plan. SQL Server Engine Query Execution All
5240249 Removes the deprecated RSA32Lib cryptographic library as part of ongoing cryptography modernization. SQL Server Engine Universal Communication Stack Windows
5272424 Fixes an access violation that occurs when you run ALTER PARTITION FUNCTION ... SPLIT RANGE against a partition function that's used by a table that has an identity column that's also referenced by a clustered index on a schema-bound view. SQL Server Engine Programmability All
5285172 Fixes a nonyielding scheduler condition that can occur when SQL Server writes certain errors to the error log. SQL Server Engine Programmability All
5293216 Adjusts the sampling rate for incremental statistics if the last sampling rate was 100 percent and many new rows are inserted into the table. SQL Server Engine Query Execution All
5300009 Improves memory management during query compilation for columnstore indexes to reduce query compilation time. SQL Server Engine Methods to access stored data Windows
5347342 Fixes a nonyielding scheduler condition that can occur if sys.dm_db_index_operational_stats iterates through a large number of cached heaps or B-trees. SQL Server Engine Methods to access stored data All

How to obtain or download this or the latest cumulative update package

How to obtain or download the latest cumulative update package for Windows (recommended)

The following update is available from the Microsoft Download Center:

Download the latest cumulative update package for SQL Server 2022 now

Note

  • Microsoft Download Center always offers the latest SQL Server 2022 CU release.
  • If the download page doesn't appear, contact Microsoft Customer Service and Support to obtain the cumulative update package.
How to obtain or download this cumulative update package for Windows from Microsoft Update Catalog

The following update is available from the Microsoft Update Catalog:

Note

  • Microsoft Update Catalog contains this SQL Server 2022 CU and previously released SQL Server 2022 CU releases.
  • This CU is also available through Windows Server Update Services (WSUS).
  • We recommend that you always install the latest cumulative update that is available.
How to obtain or download the latest cumulative update package for Linux

To update SQL Server 2022 on Linux to the latest CU, you must first have the Cumulative Update repository configured. Then, update your SQL Server packages by using the appropriate platform-specific update command.

For installation instructions and direct links to the CU package downloads, see the SQL Server 2022 Release Notes.

File information

File hash information

You can verify the download by computing the hash of the SQLServer2022-KB5093420-x64.exe file through the following command:

certutil -hashfile SQLServer2022-KB5093420-x64.exe SHA256

File name SHA256 hash
SQLServer2022-KB5093420-x64.exe A0FA6A60779CFE4C2273BDB7A9AA68E8A3B74D482650B20F1544E03386B226BC
Cumulative Update package file information

Download the list of files that are included in KB5093420.

Notes for this update

Prerequisites

To apply this cumulative update package, you must be running SQL Server 2022.

Restart information

You might have to restart the computer after you apply this cumulative update package.

Registry information

To use one of the hotfixes in this package, you don't have to make any changes to the registry.

Important notices

This article also provides the following important information.

Analysis Services CU build version

Beginning in Microsoft SQL Server 2017, the Analysis Services build version number and SQL Server Database Engine build version number don't match. For more information, see Verify Analysis Services cumulative update build version.

Cumulative updates (CU)

  • Each new CU contains all the fixes that were included with the previous CU for the installed version of SQL Server.
  • SQL Server CUs are certified to the same levels as service packs, and should be installed at the same level of confidence.
  • We recommend ongoing, proactive installation of CUs as they become available according to these guidelines:
    • Historical data shows that a significant number of support cases involve an issue that has already been addressed in a released CU.
    • CUs might contain added value over and above hotfixes. This includes supportability, manageability, and reliability updates.
  • We recommend that you test SQL Server CUs before you deploy them to production environments.
Hybrid environment deployment

When you deploy an update to a hybrid environment (such as Always On, replication, cluster, and mirroring), we recommend that you refer to the following articles before you deploy the update:

Language support

SQL Server CUs are currently multilingual. Therefore, this CU package isn't specific to one language. It applies to all supported languages.

Components (features) updated

One CU package includes all available updates for all SQL Server 2022 components (features). However, the cumulative update package updates only those components that are currently installed on the SQL Server instance that you select to be serviced. If a SQL Server feature (for example, Analysis Services) is added to the instance after this CU is applied, you must reapply this CU to update the new feature to this CU.

Support for this update

If other issues occur, or if any troubleshooting is required, you might have to create a service request. The usual support costs will apply to additional support questions and to issues that don't qualify for this specific cumulative update package. For a complete list of Microsoft Customer Service and Support telephone numbers, or to create a separate service request, go to the Microsoft support website.

How to uninstall this update

How to uninstall this update on Windows
  1. In Control Panel, open the Programs and Features item, and then select View installed updates.
  2. Locate the entry that corresponds to this cumulative update package under SQL Server 2022.
  3. Press and hold (or right-click) the entry, and then select Uninstall.
How to uninstall this update on Linux

To uninstall this CU on Linux, you must roll back the package to the previous version. For more information about how to roll back the installation, see Rollback SQL Server.

References