Security vulnerabilities and automated fixes for handlebars issues
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A critical Remote Code Execution vulnerability (CVE-2026-33937) was discovered in Handlebars.js that allows attackers to execute arbitrary code by crafting malicious Abstract Syntax Tree objects passed to the `compile()` function. This post breaks down how the vulnerability works, why it's dangerous, and how upgrading to Handlebars 4.7.9 closes the attack vector.