CVE-2026-66729 | boazsegev facil.io up to 0.7.6 Multipart MIME Body Parser http_mime_parser.h integer underflow

A vulnerability labeled as critical has been found in boazsegev facil.io up to 0.7.6. This affects an unknown function of the file http_mime_parser.h of the component Multipart MIME Body Parser. Executing a manipulation can lead to integer underflow.

This vulnerability is tracked as CVE-2026-66729. The attack can be launched remotely. No exploit exists.