CRITICALCWE-79
PARSE-003 Markdown Fence Escape
Parser Differential: Exploits differences in how parsers (JSON, YAML, markdown) interpret the same input to bypass security controls
Description
Escapes markdown code fences to inject executable content that renders differently across parsers
Remediation
Sanitize all markdown output before rendering. Never pass markdown through multiple parsers with different fence handling. Strip HTML from markdown in agent responses.