Newsn8n Critical RCE CVE-2026-21858 CVSS 10CSO Online·high signalUnauthenticated RCE in n8n workflow platform affecting 100K servers via content-type confusion in webhooksSourceSource pageCSO Online↳ Follow the threadStack layer / Threat patternNSA issues official MCP hardening guidance after Amazon Q auto-execution CVEs (CVSS 8.5) enable AWS credential theftWizStack layer / Threat patternOpenClaw ships broad July 6 platform update: GPT-5.6 support, external harness attach, hardened provider I/OReleasebotStack layer / Threat pattern'GitLost' Prompt Injection Tricks GitHub's Agentic Workflows Into Leaking Private ReposNoma SecurityStack layer / Threat patternCross-model 'prompt laundering' and GuardFall shell-injection flaws hit major coding assistantsThreat-Modeling.comStack layer / Threat patternA New Security Category Emerges: Tools That Police the Coding Agent, Not the Code — Snyk's Evo Agentic Development SecuritySiliconANGLEStack layer / Threat pattern'The MCP Governance Illusion' — Why Governing Tools Isn't EnoughCyera / Hacker NewsStack layer / Threat patternCROSS-CATEGORY: Incumbents Reopen Themselves as 'Platforms of Agents' via MCP — Greenhouse's ATS MCP Goes Broad July 6Multiple SourcesThreat pattern / ContrastBlueRock's MCP Trust Registry: 36.7% of 7,000+ scanned MCP servers are SSRF-exposed, 42% leak credentialsBlueRock