RLSA-2026:47755

RLSA-2026:47755 · Moderate: openssh security update

This page contains facts from public vulnerability sources. Check the original advisory before updating.

OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es): * openssh: Local MITM of X11 forwarding via abstract UNIX socket pre-binding in Rocky Linux OpenSSH client versions (CVE-2026-55655) * openssh: Double free in Rocky Linux versions of OpenSSH DH-GEX client path during FIPS known-group validation leads to client-side denial of service (CVE-2026-55653) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

CVSS 5.0 · Medium · Fix available

Published

2026-07-30T12:00:53.025496Z

Updated

2026-07-30T12:30:06.801883462Z

Stack: system · network

Check your server →