Rapid7

vulnerability

OpenSSH Vulnerability: CVE-2026-35388

Severity
1
CVSS
(AV:L/AC:H/Au:N/C:N/I:P/A:N)
Published
Apr 28, 2026
Added
Apr 28, 2026
Modified
Apr 28, 2026

Description

OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.

Solution

openbsd-openssh-upgrade-10_3
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.