Tech Teacher

Support Tech Teacher Help keep our digital safety guides free for seniors and non technical learners. Click to hide this message

Tech Teacher is a small nonprofit. We do not run ads or sell data. Your donation helps us:

  • Offer free cybersecurity guides for seniors
  • Run workshops for underserved communities
  • Explain technology in simple, clear language
Donate with PayPal Even 3 to 5 dollars helps us reach more people.

Critical n8n Flaw (CVSS 9.9) Enables Remote Code Execution and Data Theft – December 2025

Author/Source: Ravie Lakshmanan / The Hacker News See the full link here

Takeaway

This article talks about a very serious security problem found in a computer program called n8n, which helps automate tasks. Because of this flaw, someone could take control of systems, steal important information, or run their own harmful programs without even needing a password.

Technical Subject Understandability

Intermediate

Analogy/Comparison

Imagine you have a robot that does chores for you, but it has a secret button that lets anyone, even a stranger, tell it to do anything they want, including throwing away your important papers or letting them into your house.

Why It Matters

This problem is really important because it could let bad people completely take over computers or systems that use n8n. For example, a company using n8n could have all its sensitive customer information stolen, or its important business operations could be completely stopped by an attacker.

Related Terms

n8n, Remote Code Execution (RCE), CVSS score, Pre-authenticated, Sandbox escape, Arbitrary file writes. Jargon Conversion: n8n is a program that helps computers do tasks automatically. Remote Code Execution (RCE) means someone can control a computer from far away to run their own harmful commands. CVSS score is a number that shows how bad a security problem is. Pre-authenticated means an attacker doesn’t need to log in to cause problems. Sandbox escape is like breaking out of a safe, limited area in a computer program to get to more important parts. Arbitrary file writes means an attacker can create or change any file on the computer.

Leave a comment