NPM: n8n: Expression Sandbox Escape via Shared Builtin Tampering and Code-Printer Injection Leads to Code Execution

NPM: n8n: Expression Sandbox Escape via Shared Builtin Tampering and Code-Printer Injection Leads to Code Execution vulnerability discovered by ? in WordPress Npm n8n versions 1.123.76...

n8n: Expression Sandbox Escape via Shared Builtin Tampering and Code-Printer Injection Leads to Code Execution

Impact Two stages of expression code generation built source text by calling the global JSON.stringify at generation time: the compiler when printing synthetic string literals, and the isolate bridge when interpolating a timezone value into its per-evaluation wrapper. An expression that replaced...

CVE-2026-86083

n8n , an open-source workflow automation platform, is affected by a sandbox escape in its legacy expression engine. The root cause is that the engine called the mutable global JSON.stringify while generating source text for synthetic string literals and timezone interpolation. A crafted expressio...