CVE-2026-25049 highlights weaknesses in sandboxing user-defined JavaScript expressions within n8n workflows.
Multiple research teams demonstrated authenticated sandbox escape leading to unrestricted RCE, credential exposure, filesystem access, cloud pivoting, and AI workflow manipulation. The issue stems from incomplete AST-based sandboxing and runtime enforcement gaps.
Fixes have been released, and mitigation guidance includes updating, rotating secrets, and restricting workflow permissions.
Source: https://www.bleepingcomputer.com/news/security/critical-n8n-flaws-disclosed-along-with-public-exploits/
💬 What lessons does this case offer for securing automation platforms?
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