MDVA-40311: “Invalid security or form key” error after login into Admin if custom admin path is configured

The MDVA-40311 patch fixes the issue where the Admin user gets an error message: Invalid security or form key. Please refresh the page, after login into the Admin if the custom admin path is configured and the secret key is enabled. This patch is available when the Quality Patches Tool (QPT) 1.1.7 is installed. The patch ID is MDVA-40311. Please note that the issue is scheduled to be fixed in Adobe Commerce 2.4.4.

Affected products and versions

The patch is created for Adobe Commerce version:

• Adobe Commerce (all deployment methods) 2.4.2-p2

Compatible with Adobe Commerce versions:

• Adobe Commerce (all deployment methods) 2.4.2-p2 - 2.4.3-p1

Issue

Admin user gets an error message: Invalid security or form key. Please refresh the page, after login into the Admin if the custom admin path is configured and the secret key is enabled.

Steps to reproduce:

• Log in as the Admin user using a valid username and password.

Expected results:

User is able to log in without any error message.

Actual results:

Invalid security or form key. Please refresh the page error message is displayed.

Apply the patch

To apply individual patches, use the following links depending on your deployment method:

• Adobe Commerce or Magento Open Source on-premises: Software Update Guide > Apply Patches in our developer documentation.
• Adobe Commerce on cloud infrastructure: Upgrades and Patches > Apply Patches in our developer documentation.

Related reading

To learn more about Quality Patches Tool, refer to:

• Quality Patches Tool released: a new tool to self-serve quality patches in our support knowledge base.
• Check if patch is available for your Adobe Commerce issue using Quality Patches Tool in our support knowledge base.

For info about other patches available in QPT, refer to Patches available in QPT in our developer documentation.