EEF-CVE-2026-48859 SSH server timing side-channel in ssh_auth:check_password/3 allows unauthenticated username enumeration

Summary Observable Timing Discrepancy vulnerability in Erlang/OTP ssh ssh\auth, ssh\options modules allows unauthenticated remote username enumeration via timing side-channel in password authentication. When the SSH daemon is configured with the user\passwords or password option,...

PT-2026-48466

Name of the Vulnerable Software and Affected Versions Erlang/OTP versions 29.0 through 29.0.1 ssh versions 6.0 through 6.0.0 Description A timing side-channel in password authentication allows unauthenticated remote attackers to enumerate usernames. When the SSH daemon is configured with the user...