1. CVE-2026-42246: Ruby net-imap Silent TLS Failures Expose Email Traffic to MITM Attacks
A high-severity vulnerability in Ruby's net-imap library could leave email communications exposed to interception after the library fails to properly report TLS handshake failures. CVE-2026-42246 affects multiple version branches of the widely-used IMAP client library, creating conditions where failed TLS negotiations ...