USN-8577-1: OpenSSH vulnerability

USN-8222-1 fixed a vulnerability in OpenSSH. This update provides the corresponding fix for Ubuntu 16.04 LTS. Original advisory details: Vladimir Tokarev discovered that OpenSSH incorrectly handled certificates with the principal name containing a comma character when using user-trusted CA keys i...

CVE-2026-56624

Improper certificate validation in Apache MINA SSHD server-side. Apache MINA SSHD is a Java library for client-side and server-side SSH. Server-side OpenSSH user certificate validation during user authentication in an Apache MINA SSHD server did not check for the unsupported force-command or...

CVE-2026-56624

The vulnerability CVE-2026-56624 affects Apache MINA SSHD (server-side) where OpenSSH user certificates with unsupported options, specifically force-command and verify-required, were not validated during authentication. The issue allows a user with such a certificate to potentially run commands b...

CVE-2026-56624 Apache MINA SSHD: SSH certificate options lack validations

Improper certificate validation in Apache MINA SSHD server-side. Apache MINA SSHD is a Java library for client-side and server-side SSH. Server-side OpenSSH user certificate validation during user authentication in an Apache MINA SSHD server did not check for the unsupported force-command or...

ROOT-OS-DEBIAN-11-CVE-2023-51767 CVE-2023-51767 in rootio-openssh - Patched by Root

Root has patched CVE-2023-51767 in the rootio-openssh package for Root:Debian:11. Multiple fixed versions available...

ROOT-OS-DEBIAN-12-CVE-2023-51767 CVE-2023-51767 in rootio-openssh - Patched by Root

Root has patched CVE-2023-51767 in the rootio-openssh package for Root:Debian:12. Multiple fixed versions available...

ROOT-OS-DEBIAN-12-CVE-2018-15919 CVE-2018-15919 in rootio-openssh - Patched by Root

Root has patched CVE-2018-15919 in the rootio-openssh package for Root:Debian:12. Multiple fixed versions available...

Oracle Linux 10 : openssh (ELSA-2026-19069)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-19069 advisory. - CVE-2026-35385: Fix privilege escalation via scp legacy protocol when not in preserving file mode Resolves: RHEL-164739 - CVE-2026-35388: Add...

Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : OpenSSH vulnerabilities (USN-8533-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8533-1 advisory. It was discovered that OpenSSH sftp did not properly constrain the location of downloaded files when connecting to an...

EulerOS 2.0 SP10 : openssh (EulerOS-SA-2026-2664)

According to the versions of the openssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.CVE-2026-35388 In OpenSSH before 10.3, comman...

CVE-2026-59996

A flaw was found in OpenSSH, a widely used tool for secure remote access. When a user attempts to copy files between two different remote systems using the scp command, the file might be incorrectly placed in a directory above the intended destination. This unintended file placement could lead to...

OpenSSH < 10.4 Multiple Vulnerabilities

The version of OpenSSH installed on the remote host is prior to 10.4. It is, therefore, affected by multiple vulnerabilities, including: - ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. This outcome occurs only on the client side...

openssh: OpenSSH: `scp` file misplacement vulnerability during remote copy

A flaw was found in OpenSSH, a widely used tool for secure remote access. When a user attempts to copy files between two different remote systems using the scp command, the file might be incorrectly placed in a directory above the intended destination. This unintended file placement could lead to...

openssh: OpenSSH: Use-after-free vulnerability during host key re-exchange on the client side

A flaw was found in OpenSSH. A remote attacker could exploit a use-after-free vulnerability on the client side when a server changes its host key during a key re-exchange. This could lead to high impact on confidentiality and integrity, and low impact on availability...

openssh: OpenSSH: Denial of Service via excessive GSSAPI authentication attempts

A flaw was found in OpenSSH's Secure Shell Daemon sshd. This vulnerability allows a remote attacker to cause a denial of service by initiating an excessive number of authentication attempts. The issue arises from the mishandling of the MaxAuthTries setting specifically when using...

openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw

A flaw was found in OpenSSH. The internal-sftp component within sshd incorrectly processes command-line arguments, recognizing only the first nine. This limitation can prevent the application of intended security configurations for SFTP SSH File Transfer Protocol connections, potentially leading ...

openssh: OpenSSH: sftp client allows attacker to control downloaded file location

A flaw was found in OpenSSH. The sftp client, when used to download files from a malicious server with the 'sftp server:/path .' command, does not properly restrict where those files are saved. This allows an attacker to control the download location, potentially overwriting existing files or...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: openssh: openssh-10.4p1-1.hum1 aarch64, x8664 openssh-askpass-10.4p1-1.hum1 aarch64, x8664 openssh-clients-10.4p1-1.hum1 aarch64, x8664 openssh-keycat-10.4p1-1.hum1 aarch64, x8664...

openssh: OpenSSH: Undocumented GSSAPIStrictAcceptorCheck behavior impacts security in Windows Active Directory

A flaw was found in OpenSSH. The sshd component has an undocumented security-relevant behavior where GSSAPIStrictAcceptorCheck has no value when the server is in a Windows Active Directory environment. This could lead to unintended information disclosure and impact data integrity...

openssh: OpenSSH sshd: Security bypass due to incorrect handling of forwarding and tunneling options

A flaw was found in sshd, the OpenSSH server daemon. When DisableForwarding=yes is configured to prevent network traffic forwarding, it incorrectly fails to take precedence over PermitTunnel=yes. This allows a remote attacker to bypass intended security restrictions and establish a tunnel,...