CVE-2026-21877 2

Vulnerability (CVE)

n8n Warns of CVSS 10.0 RCE Vulnerability Affecting Self-Hosted and Cloud Versions

n8n disclosed CVE-2026-21877, a maximum-severity flaw rated 10.0 on CVSS that lets an authenticated user cause untrusted code to be executed by the n8n service, potentially resulting in full compromise of the affected instance. Both self-hosted deployments...

Vulnerabilities & Patching

⚡ Weekly Recap: AI Automation Exploits, Telecom Espionage, Prompt Poaching & More

Cyber Risks The Hacker News

A maximum-severity vulnerability in the n8n workflow automation platform, tracked as CVE-2026-21858 and called Ni8mare, allows unauthenticated remote code execution on locally deployed instances running versions prior to 1.121.0. The flaw arises in...

Vulnerabilities & Patching