CVE-2025-68699

CVE-2025-68699 affects NanoMQ NanoMQ 0.24.6 where a malformed $share/ SUBSCRIBE topic (e.g., $share/ab) is not strictly validated, allowing an invalid topic filter to be stored. When a PUBLISH matches, nmq_pipe_send_start_v4/v5 re-parses the topic using strchr(); if the second strchr() returns NU...