Shared on Mage Dispatch · 07 Sep 2026
Announces a hotfix for CVE-2026-75650, a critical template engine vulnerability enabling unauthenticated remote code execution (CVSS 10) and known to be exploited. Lists affected 2.4.x and B2B releases and links to installation instructions.
Three bash scripts to scan for IoCs and guide cleanup on servers, apply community mitigations via Composer patches and a hardening module, and remotely check GraphQL exposure. Includes DDEV/Warden support, cloud-friendly usage, and step-by-step confirmations.
Diff introduces SecurePathValidator to reject stream/writable paths during template rendering, blocks backend/adminhtml blocks in {{block}} directives, and neutralizes PHP tags in error reports. Also tightens DI/setup scanners and grid URL generator type checks to avoid unsafe class/path resolution.
Composer-installable module that mitigates the Style Smuggler vulnerability by allowlisting email template {{block}} classes, validating grid row URL generator classes, and neutralizing Web API fatal error report output. Includes setup steps and di.xml examples to allowlist needed email blocks and guidance on checking logs for refused classes.
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