Critical RCE Flaw in n8n (CVE-2026-21877) Risks Server Takeovers – Update Now

N8n Users Urged To Patch CVSS 10.0 Full System Takeover Vulnerability – Hackread – Cybersecurity News, Data Breaches, AI, And More - Cybernoz - Cybersecurity News

If your company uses n8n to handle daily tasks, it is time to check your version number. A major security flaw has been found in the platform, and it’s about as serious as it gets. The firm Upwind recently put out an analysis on this problem, which is a “critical authenticated remote code execution vulnerability.” In simple words, it means that if a hacker gets in, they could take over the whole system. For your information, n8n is a “glue” that…

The Ni8mare Test: n8n RCE Under the Microscope (CVE-2026-21858)

Trendy vulnerabilities aren’t always worth the hype—panic-driven responses often lead to wasted time and resources. This is top of mind for us as we’ve researched recent issues regarding n8n, a popular AI workflow automation tool. After assessing relevant data from customer’s production environments, Horizon3.ai’s Attack Team determined that the blast radius of CVE-2026-21858 is not as large as… Source

Critical RCE Flaw in n8n (CVE-2026-21877) Risks Server Takeovers – Update Now

The Ni8mare Breach: How a Single Flaw in n8n Could Upend Enterprise Automation In the fast-paced world of enterprise automation, where tools like n8n promise seamless integration of workflows across cloud and self-hosted environments, a chilling vulnerability has emerged that threatens to compromise entire systems. This critical remote code execution (RCE) flaw, scored at the maximum CVSS rating of 10.0, allows authenticated attackers to execute…