Prompt-Injection
The Agent Is the Payload: How AI Coding Agents Became 2026's Fastest RCE Pipeline
Six incidents in six weeks show the same failure mode: AI coding agents treat untrusted text as instructions and shell access as a convenience feature. Prompt injection to RCE is no longer theoretical — it's a documented, repeatable kill chain, and the guardrails vendors are shipping don't touch the actual boundary.
PraisonAI: Two More Critical RCEs (CVE-2026-61445, CVE-2026-61447) as AICoder Runs LLM Output Unsandboxed
PraisonAI's AICoder component writes files and executes shell commands straight from LLM tool calls with no path validation, and CodeAgent._execute_python() runs LLM-generated Python with no AST checks or sandboxing — two CVSS 9.9 and 10.0 flaws, patched in 4.6.78.
DuneSlide: Zero-Click Prompt Injection Chains to Full RCE in Cursor IDE (CVE-2026-50548, CVE-2026-50549)
Two critical Cursor IDE flaws, dubbed DuneSlide, let a poisoned MCP response or web search result steer the agent's own sandbox into overwriting its enforcement binary — zero-click prompt injection to unsandboxed remote code execution, patched in Cursor 3.0.