EUVD-2026-46268

A flaw was found in libssh. On servers with GSSAPIKeyExchange enabled, the gssapi-keyex path does not verify whether the authenticated Kerberos principal is authorized for the requested local user, allowing authenticated clients to log in as arbitrary users...

CVE-2026-59850

A flaw was found in libssh. If data packets are processed after a channel is closed, channel data callbacks can be invoked after the associated data has already been freed, leading to crashes or possible use-after-free conditions...

EUVD-2026-46266

A flaw was found in libssh. If data packets are processed after a channel is closed, channel data callbacks can be invoked after the associated data has already been freed, leading to crashes or possible use-after-free conditions...

CVE-2026-59842

A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation, leading to an out-of-bounds heap read. This could allow a remote unauthenticated attacker to disclose small...

CVE-2026-59844

A flaw was found in libssh. A remote authenticated client can issue SSHFXPREAD requests with an arbitrarily large length, causing a libssh SFTP server to allocate excessive memory and potentially exhaust it through repeated requests...

PT-2026-61940

Name of the Vulnerable Software and Affected Versions libssh affected versions not specified Description A flaw exists where a malicious SFTP server can send responses for unknown request IDs. The libssh client queues these responses indefinitely, leading to unbounded memory growth and a...

PT-2026-61858

Name of the Vulnerable Software and Affected Versions libssh affected versions not specified Description A flaw exists where a remote authenticated peer can advertise a zero maximum packet size within the SSH MSG CHANNEL OPEN message. This causes subsequent channel writes to enter an infinite loo...

EulerOS Virtualization 2.10.1 : libssh2 (EulerOS-SA-2026-2827)

According to the versions of the libssh2 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the fi...

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...

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

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-2026-58624 Apache MINA SSHD: Remote execution of JGit commands can write files on the server

Improper input validation in sshd-git in Apache MINA SSHD. Apache MINA SSHD is a Java library for client-side and server-side SSH. Component org.apache.sshd:sshd-git provides though its GitPgmCommandFactory a way to configure an Apache MINA SSHD server such that SSH clients can remotely execute g...

CVE-2026-58624

Improper input validation in sshd-git in Apache MINA SSHD. Apache MINA SSHD is a Java library for client-side and server-side SSH. Component org.apache.sshd:sshd-git provides though its GitPgmCommandFactory a way to configure an Apache MINA SSHD server such that SSH clients can remotely execute g...

Malicious code in roles-royce (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 318b93ddaafba751bab93b48efbef99f4eb45f143b019d7ff0f74735e434f378 rolesroyce/init.py invokes a hidden checkenv routine at import time that spawns a background thread harvesting installer secrets — SSH private keys...

CVE-2026-12080

A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use TOCTOU...

CVE-2026-12080

A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use TOCTOU...

CVE-2026-12080

A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use TOCTOU...

PT-2026-61720

Name of the Vulnerable Software and Affected Versions Apache MINA SSHD versions prior to 2.19.0 Apache MINA SSHD versions prior to 3.0.0-M5 Description Improper certificate validation occurs during server-side OpenSSH user authentication. The server fails to check or validate the force-command or...

Important: amazon-ssm-agent

Issue Overview: An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state a...

Malicious code in supplyhub (npm)

The npm package supplyhub is a credential / SSH-key stealer. Its package.json declares a postinstall lifecycle hook postinstall: node postinstall.js that executes automatically on npm install, before the package is ever imported. postinstall.js uses fs.readFileSync to read the user's SSH private...