Newsn8n CVSS 10.0 RCE CVE-2026-21858 100K Servers AffectedCyera Research Labs·high signalContent-Type confusion in n8n Form Webhook enables unauthenticated RCE. Leaks admin credentials via LLM chatbot nodes. 100K servers globally. Patched v1.121.0+.SourceSource pageCyera Research Labs↳ Follow the threadStack layer / Threat pattern'The MCP Governance Illusion' — Why Governing Tools Isn't EnoughCyera / Hacker NewsStack layer / Threat patternNSA issues official MCP hardening guidance after Amazon Q auto-execution CVEs (CVSS 8.5) enable AWS credential theftWizStack layer / Threat patternPACR-Video Enables Parameter-Efficient Multi-Shot Long-Video ExtrapolationarXivStack layer / Threat pattern'GitLost' Prompt Injection Tricks GitHub's Agentic Workflows Into Leaking Private ReposNoma SecurityPolicy dependency / Threat patternauthsome Gives AI Agents Credentials Without Ever Exposing Your SecretsGitHubThreat pattern / ContrastBlueRock's MCP Trust Registry: 36.7% of 7,000+ scanned MCP servers are SSRF-exposed, 42% leak credentialsBlueRockThreat pattern / ContrastMid-Session Tool Injection weaponized against WebMCP agents via threshold poisoning and fake diagnostic eventsAdversa AIPolicy dependency / Stack layerIAPS warns on Kimi Claw: security and governance risks of Chinese-hosted 'always-on' AI agentsIAPS