Deep technical analysis of CVE-2026-25049: How type confusion bypassed n8n's security patch and why TypeScript types aren't runtime security boundaries
I’m not even sure whether there’s a defense against this when trying to limit the user to a subset of JavaScript. It feels like you need to write a compiler or interpreter that doesn’t know anything outside of that subset otherwise you can break out of the language sandbox.
I’m not even sure whether there’s a defense against this when trying to limit the user to a subset of JavaScript. It feels like you need to write a compiler or interpreter that doesn’t know anything outside of that subset otherwise you can break out of the language sandbox.