GHSA-G794-3FMP-753H AsyncSSH `AuthorizedKeysFile %u` path traversal allows attacker-selected authorized keys to authenticate a traversal username

Summary AsyncSSH 2.22.0 expands the OpenSSH-compatible AuthorizedKeysFile %u token with the raw SSH username during pre-authentication server config reload. A server configured with a documented per-user key pattern such as AuthorizedKeysFile authorizedkeys/%u can be made to read an authorized-ke...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal via the AuthorizedKeysFile %u token. An attacker can gain unauthorized SSH authentication by supplying a specially crafted username containing path traversal sequences, allowing the server to read an...

OpenSSH: OpenSSH: Arbitrary command execution via shell metacharacters in username

A flaw was found in OpenSSH. This vulnerability allows a remote attacker to achieve arbitrary command execution by injecting shell metacharacters into a username provided on the command line. Exploitation requires an untrusted username and a non-default configuration of the '%' character in...

CVE-2026-44712 pam_usb: Shell injection via device UUID and username in pamusb-conf and pamusb-agent

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, a crafted UUID such as $id/tmp/rce in the config causes root RCE when pamusb-conf --reset-pads is run. A USB device with a crafted filesystem UUID some controllers allow this can inject the payload a...

CVE-2026-44712

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, a crafted UUID such as $id/tmp/rce in the config causes root RCE when pamusb-conf --reset-pads is run. A USB device with a crafted filesystem UUID some controllers allow this can inject the payload a...

CVE-2026-44712 pam_usb: Shell injection via device UUID and username in pamusb-conf and pamusb-agent

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, a crafted UUID such as $id/tmp/rce in the config causes root RCE when pamusb-conf --reset-pads is run. A USB device with a crafted filesystem UUID some controllers allow this can inject the payload a...

CVE-2026-44712 pam_usb: Shell injection via device UUID and username in pamusb-conf and pamusb-agent

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, a crafted UUID such as $id/tmp/rce in the config causes root RCE when pamusb-conf --reset-pads is run. A USB device with a crafted filesystem UUID some controllers allow this can inject the payload a...

OpenSSH: OpenSSH: Arbitrary command execution via shell metacharacters in username

A flaw was found in OpenSSH. This vulnerability allows a remote attacker to achieve arbitrary command execution by injecting shell metacharacters into a username provided on the command line. Exploitation requires an untrusted username and a non-default configuration of the '%' character in...

CVE-2026-47783

A flaw was found in memcached. A remote attacker can exploit a timing side channel during Simple Authentication and Security Layer SASL password database authentication. This vulnerability allows an attacker to observe subtle timing differences, which could be used to enumerate valid usernames...

PT-2026-44112

Name of the Vulnerable Software and Affected Versions pam usb versions prior to 0.8.7 Description An issue exists in the hardware authentication system for Linux where shell injection can occur. A crafted UUID in the configuration can lead to root remote code execution when the pamusb-conf...

PT-2026-44079

Name of the Vulnerable Software and Affected Versions Himmelblau versions 2.0.0 through 3.1.4 Himmelblau versions prior to 2.3.11 Description An authentication bypass exists in the Device Authorization Grant DAG flow, which is a process allowing devices with limited input capabilities to be...

Amazon Linux 2023 : openssh, openssh-clients, openssh-keycat (ALAS2023-2026-1745)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1745 advisory. Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the...

LDAP Injection

Overview Affected versions of this package are vulnerable to LDAP Injection via the LdapAuthModule process. An attacker can gain unauthorized access to user accounts by injecting specially crafted input into the username parameter during LDAP authentication. Note: This is only exploitable if the...

USN-8309-1: libssh2 vulnerability

It was discovered that libssh2 incorrectly handled username and password length values during SSH password authentication. A remote attacker could possibly use this issue to cause a denial of service...

USN-8309-1 libssh2 vulnerability

It was discovered that libssh2 incorrectly handled username and password length values during SSH password authentication. A remote attacker could possibly use this issue to cause a denial of service...

CVE-2026-47202

Kavita is a cross platform reading server. Prior to 0.9.0.2, an Improper Token validation flaw permits a remote and unauthenticated threat actor to request a JWT for any user including admins given knowledge of their username. This vulnerability is fixed in 0.9.0.2...

CVE-2026-48902

The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set...

CVE-2026-48902

The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set...

CVE-2026-48902 Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links

The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set...

CVE-2026-48902 Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links

The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set...