Open-source workflow automation platform n8n has warned of a maximum-severity security flaw that, if successfully exploited, could result in authenticated remote code execution (RCE). The vulnerability, which has been assigned the CVE identifier CVE-2026-21877, is rated 10.0 on the CVSS scoring system. "Under certain conditions, an authenticated user may be able to cause untrusted code to be
In cybersecurity, this incident underscores the persistent threat landscape facing AI-powered systems. Vulnerabilities in automation platforms like n8n provide attackers with a powerful means to compromise the security of entire AI ecosystems, demanding constant vigilance and proactive security measures.
Businesses using n8n to automate AI/ML workflows must immediately patch the vulnerability and implement robust access controls. This includes auditing existing workflows, limiting user privileges, and ensuring proper input validation to prevent code injection attacks. Operational efficiency could be hampered by increased security measures in the short term, but these are crucial to prevent long-term disruptions and data breaches.