Description of the security update for SharePoint Server Subscription Edition: July 14, 2026 (KB5002882)

Applies To
SharePoint Server Subscription Edition

Summary

Important

  • If you're currently running SharePoint Workflow Manager, you must install SharePoint Workflow Manager (KB5002799) to your farm before you install this cumulative update.
  • If you're currently running the Classic version of Workflow Manager, you have to enable the debug flag in order to continue using Workflow Manager:
      $farm = Get-SPFarm
      $farm.ServerDebugFlags.Add(53601)
      $farm.update()
      iisreset

This security update resolves a Microsoft SharePoint Server Information Disclosure, Microsoft SharePoint Server Remote Code Execution vulnerability, Microsoft SharePoint Server Spoofing vulnerability, Microsoft Word Remote Code Execution vulnerability, Microsoft SharePoint Server Security Feature Bypass vulnerability, and Microsoft SharePoint Elevation of Privilege vulnerability. To learn more about the vulnerabilities, see the following security advisories:​​​​​​​​​​​​​​

Note

  • This is build 16.0.19725.20434 of the security update package.
  • To apply this security update, you must have the release version of Microsoft SharePoint Server Subscription Edition installed on the computer.

Improvements and fixes

This security update contains improvements and fixes for the following nonsecurity issues in SharePoint Server Subscription Edition:

  • Fixes an issue in which SharePoint 2010 workflows don't initiate after the June 2026 update is installed.

Known issues in this update

After you run PSConfig, run the following PowerShell commands. This setting disables a defense-in-depth feature that is currently under development that may cause a regression. Existing actor token validation checks remain in place.

$farm = Get-SPFarm

$farm. DisableActorTokenAudienceValidation = $true #disables only the defense-in-depth validation

$farm.update ()

How to get and install the update

Method 1: Microsoft Update

This update is available from Microsoft Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Method 3: Microsoft Download Center

You can get the standalone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

More information

Security update deployment information

For deployment information about this update, see Deployments - Security Update Guide.

Security update replacement information

This security update replaces previously released security update 5002873.

File hash information

File name SHA256 hash
uber-subscription-kb5002882-fullfile-x64-glb.exe 45CA5B642F452D7142557159811E14327A27DC089C93BA1262275FD5008EBCBC

File information

Download the list of files that are included in Security Update 5002882

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security