The vulnerability was originally reported as a ReDoS in marked.js' input processing. While no patch details are available, ReDoS vulnerabilities in Markdown parsers typically exist in regex-heavy inline content handlers. The Lexer.tokenize method initiates parsing, and InlineLexer.output processes inline elements - both would appear in stack traces during input processing. Confidence is medium due to lack of direct patch evidence, but aligns with the described attack vector and typical vulnerable components in Markdown parsers.