Threats tagged 'brew-fastmcp-cve-2026-40347'

A denial of service vulnerability in fastmcp's python-multipart parser allows attackers to send crafted multipart/form-data requests with large preamble or epilogue sections, causing excessive CPU consumption during parsing. This degrades availability by slowing request handling but does not typically cause complete service outage. The issue is fixed in version 3.2.4.