Erlang/OTP 22.2 < 27.3.4.18 / 28.0 < 28.5.0.7 / 29.0 < 29.1.1 TLS 1.3 Server Authentication Bypass (CVE-2026-89422)

The version of Erlang/OTP installed on the remote host is 22.2 prior to 27.3.4.18, 28.0 prior to 28.5.0.7, or 29.0 prior to 29.1.1. It is, therefore, affected by a vulnerability: - Key Exchange without Entity Authentication vulnerability in Erlang/OTP ssl allows a peer that answers a TLS 1.3 clie...

DEBIAN-CVE-2026-89422

Key Exchange without Entity Authentication vulnerability in Erlang/OTP ssl allows a peer that answers a TLS 1.3 client connection to impersonate the intended server. A presharedkey extension in the ServerHello that the client never offered causes the client to complete the handshake without...

UBUNTU-CVE-2026-89422

Key Exchange without Entity Authentication vulnerability in Erlang/OTP ssl allows a peer that answers a TLS 1.3 client connection to impersonate the intended server. A presharedkey extension in the ServerHello that the client never offered causes the client to complete the handshake without...

CVE-2026-89422 TLS 1.3 client skips server authentication when ServerHello carries an unsolicited pre_shared_key extension

Key Exchange without Entity Authentication vulnerability in Erlang/OTP ssl allows a peer that answers a TLS 1.3 client connection to impersonate the intended server. A presharedkey extension in the ServerHello that the client never offered causes the client to complete the handshake without...

CVE-2026-89422

Key Exchange without Entity Authentication vulnerability in Erlang/OTP ssl allows a peer that answers a TLS 1.3 client connection to impersonate the intended server. A presharedkey extension in the ServerHello that the client never offered causes the client to complete the handshake without...

CVE-2026-89422 TLS 1.3 client skips server authentication when ServerHello carries an unsolicited pre_shared_key extension

Key Exchange without Entity Authentication vulnerability in Erlang/OTP ssl allows a peer that answers a TLS 1.3 client connection to impersonate the intended server. A presharedkey extension in the ServerHello that the client never offered causes the client to complete the handshake without...