CVE-2026-70368 Stunnel: stack-based out-of-bounds read/write in stunnel s_vlog via oversized log message

A stack-based out-of-bounds read vulnerability exists in the "svlog" function of stunnel, when handling oversized log messages via "vsnprintf". A remote attacker with network access to a stunnel service can send protocol inputs that trigger a log message longer than 1024 bytes, leading to an...