BaseFortify CVE report screenshot showing CVE-2026-0863 with CVSS 8.5 severity and affected n8n versions.
🧠 Technical details
By abusing string formatting and exception handling, attackers escape n8n’s Python sandbox (CWE-95). In “Internal” execution mode this leads to full instance takeover. In “External” mode, execution is confined to a sidecar container. 🧩💥
#AppSec #SandboxEscape #Python #RCE