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Adobe Commerce and Magento Open Source stores: install the July security patch
In plain English
The US cybersecurity agency (CISA) has added a vulnerability nicknamed "PolyShell" to its list of known exploited flaws. It affects Adobe Commerce and Magento Open Source stores that haven't installed recent security updates. Adobe released a fix in its July 2026 security update.
What to do
- 1Confirm the July 2026 patch is installed
- 2Apply the October patch and hotfix too
- 3Check for anything added before patching