ALSA-2026:7384 Critical: cockpit: Unauthenticated remote code execution due to SSH command-line argument injection

Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network configuration, log inspection, diagnostic reports, SELinux troubleshooting, interactive command-line sessions, and more. Security Fixes: cockpit: ws: be more explicit when handling hostnames on cli...

RHEL 10 : cockpit: Unauthenticated remote code execution due to SSH command-line argument injection (Critical) (RHSA-2026:7381)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:7381 advisory. Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network configuration, log inspection, diagnostic reports,...

ALSA-2026:7383 Critical: cockpit: Unauthenticated remote code execution due to SSH command-line argument injection

Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network configuration, log inspection, diagnostic reports, SELinux troubleshooting, interactive command-line sessions, and more. Security Fixes: cockpit: ws: be more explicit when handling hostnames on cli...

JLSEC-2026-67

ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9...

CVE-2025-13914 Apstra: SSH host key validation vulnerability for managed devices

A Key Exchange without Entity Authentication vulnerability in the SSH implementation of Juniper Networks Apstra allows a unauthenticated, MITM attacker to impersonate managed devices. Due to insufficient SSH host key validation an attacker can perform a machine-in-the-middle attack on the SSH...

CVE-2025-13914

CVE-2025-13914 concerns Juniper Networks Apstra SSH host key validation, described as a Key Exchange without Entity Authentication vulnerability. The issue enables an unauthenticated attacker to perform a man-in-the-middle attack on SSH connections from Apstra to managed devices, allowing imperso...

golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via unbounded memory consumption in GSSAPI authentication

A flaw was found in golang.org/x/crypto/ssh. An attacker can exploit this vulnerability by sending specially crafted GSSAPI Generic Security Service Application Program Interface authentication requests to an SSH Secure Shell server. The server fails to validate the number of mechanisms specified...

CLEANSTART-2026-FZ55932 SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process

Multiple security vulnerabilities affect the istio-fips package. SSH clients receiving SSHAGENTSUCCESS when expecting a typed response will panic and cause early termination of the client process. See references for individual vulnerability details...

Tracing the Chain: Deep Learning for Stepping-Stone Intrusion Detection

Stepping-stone intrusions SSIs are a prevalent network evasion technique in which attackers route sessions through chains of compromised intermediate hosts to obscure their origin. Effective SSI detection requires correlating the incoming and outgoing flows at each relay host at extremely low fal...

libssh: libssh: Insecure default configuration leads to local man-in-the-middle attacks on Windows

A flaw was found in libssh. This vulnerability allows local man-in-the-middle attacks, security downgrades of SSH Secure Shell connections, and manipulation of trusted host information, posing a significant risk to the confidentiality, integrity, and availability of SSH communications via an...

Iran-Linked Hackers Disrupt U.S. Critical Infrastructure by Targeting Internet-Exposed PLCs

Iran-affiliated cyber actors are targeting internet-facing operational technology OT devices across critical infrastructures in the U.S., including programmable logic controllers PLCs, cybersecurity and intelligence agencies warned Tuesday. "These attacks have led to diminished PLC functionality,...

EUVD-2026-19814

Cockpit's remote login feature passes user-supplied hostnames and usernames from the web interface to the SSH client without validation or sanitization. An attacker with network access to the Cockpit web service can craft a single HTTP request to the login endpoint that injects malicious SSH...

DEBIAN-CVE-2026-4631

Cockpit's remote login feature passes user-supplied hostnames and usernames from the web interface to the SSH client without validation or sanitization. An attacker with network access to the Cockpit web service can craft a single HTTP request to the login endpoint that injects malicious SSH...

CVE-2025-14821 Libssh: libssh: insecure default configuration leads to local man-in-the-middle attacks on windows

A flaw was found in libssh. This vulnerability allows local man-in-the-middle attacks, security downgrades of SSH Secure Shell connections, and manipulation of trusted host information, posing a significant risk to the confidentiality, integrity, and availability of SSH communications via an...

CVE-2025-14821 Libssh: libssh: insecure default configuration leads to local man-in-the-middle attacks on windows

A flaw was found in libssh. This vulnerability allows local man-in-the-middle attacks, security downgrades of SSH Secure Shell connections, and manipulation of trusted host information, posing a significant risk to the confidentiality, integrity, and availability of SSH communications via an...

CVE-2026-4631

Cockpit's remote login feature passes user-supplied hostnames and usernames from the web interface to the SSH client without validation or sanitization. An attacker with network access to the Cockpit web service can craft a single HTTP request to the login endpoint that injects malicious SSH...

CVE-2026-4631 Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection

Cockpit's remote login feature passes user-supplied hostnames and usernames from the web interface to the SSH client without validation or sanitization. An attacker with network access to the Cockpit web service can craft a single HTTP request to the login endpoint that injects malicious SSH...

CVE-2026-4631 Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection

Cockpit's remote login feature passes user-supplied hostnames and usernames from the web interface to the SSH client without validation or sanitization. An attacker with network access to the Cockpit web service can craft a single HTTP request to the login endpoint that injects malicious SSH...

CVE-2026-4631

Cockpit suffers unauthenticated remote code execution via SSH argument injection in its remote login feature. The web interface passes user-supplied hostnames and usernames directly to the SSH client without validation, allowing an attacker with network access to Cockpit to craft a single HTTP re...

curl: libssh key passphrase bypass without agent set

A flaw was found in libcurl. When doing SSH-based transfers using either SCP or SFTP, and asked to do public key authentication, curl would wrongly still ask and authenticate using a locally running SSH agent...