PYSEC-2026-2907 PraisonAI Has ReDoS via Unvalidated User-Controlled Regex in MCPToolIndex.search_tools()

Summary MCPToolIndex.searchtools compiles a caller-supplied string directly as a Python regular expression with no validation, sanitization, or timeout. A crafted regex causes catastrophic backtracking in the re engine, blocking the Python thread for hundreds of seconds and causing a complete...

GHSA-8QJW-9XGM-C9FF PowSyBl Core Contains a Polynomial ReDoS in RegexCriterion

Impact What kind of vulnerability is it? Who is impacted? This is an advisory for a potential polynomial Regular Expression Denial of Service ReDoS vulnerability in the RegexCriterion class. This class compiles and evaluates an unvalidated, user-supplied regular expression against the identifier ...