gssapi-abuse

gssapi-abuse gssapi-abuse was released as part of my DEF CON 31 talk. A full write up on the abuse vector can be found here: A Broken Marriage: Abusing Mixed Vendor Kerberos Stacks The tool has two features. The first is the ability to enumerate non Windows hosts that are joined to Active Directo...

RLSA-2026:85958 Moderate: openssh security update

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 Fixes: openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw CVE-2026-599...

RLSA-2026:85847 Moderate: openssh security update

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 Fixes: openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw CVE-2026-599...

RockyLinux 9 : openssh (RLSA-2026:85958)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:85958 advisory. openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw CVE-2026-59997 openssh: OpenSSH: Undocumented GSSAPIStrictAcceptorCheck...

RockyLinux 10 : openssh (RLSA-2026:85847)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:85847 advisory. openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw CVE-2026-59997 openssh: OpenSSH: Undocumented GSSAPIStrictAcceptorChec...

openssh security update

9.9p1-13.0.1 - Restore pamsshagentrel values that were used for initial release - Fix PerSourcePenalties grace-exceeded using the crash penalty value Orabug: 39825354 - Replace unsupported ML-KEM hybrid algorithm skip logic with v9.9p1-23.el102 ML-KEM/NIST backport Orabug: 39423076 - Upstream...

AlmaLinux 9 : openssh (ALSA-2026:85958)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:85958 advisory. openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw CVE-2026-59997 openssh: OpenSSH: Undocumented GSSAPIStrictAcceptorCheck...

AlmaLinux 10 : openssh (ALSA-2026:85847)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:85847 advisory. openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw CVE-2026-59997 openssh: OpenSSH: Undocumented GSSAPIStrictAcceptorCheck...

CLEANSTART-2026-CZ18029 SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption

Security vulnerability affects the tempo package. SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption...

ALSA-2026:85958 Moderate: openssh security update

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 Fixes: openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw CVE-2026-599...

Moderate: openssh security update

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 Fixes: openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw CVE-2026-599...

CVE-2026-106553

A flaw was found in OpenSSH. When Generic Security Services Application Programming Interface GSSAPI authentication is enabled, the SSH daemon fails to properly discard credentials after a failed authentication attempt. If a user subsequently authenticates through another method, the leftover...

UBUNTU-CVE-2026-110924

A flaw was found in OpenSSH. With GSSAPI authentication enabled, a failed GSSAPI attempt can leave delegated credentials stored for the connection even though user authorization did not succeed. A later successful login on that connection is not authorized by the leftover state...

CVE-2026-110924

A flaw was found in OpenSSH. With GSSAPI authentication enabled, a failed GSSAPI attempt can leave delegated credentials stored for the connection even though user authorization did not succeed. A later successful login on that connection is not authorized by the leftover state...

CVE-2026-110924

Rejected reason: CVE-2026-110924 has been marked as a duplicate of CVE-2026-106553...

CVE-2026-110924

A flaw was found in OpenSSH. With GSSAPI authentication enabled, a failed GSSAPI attempt can leave delegated credentials stored for the connection even though user authorization did not succeed. A later successful login on that connection is not authorized by the leftover state...

CLEANSTART-2026-UU01575 SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption

CVE-2025-58181 affects multiple packages. SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption. See references for individual vulnerability details...

CLEANSTART-2026-FE09696 SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption

CVE-2025-58181 affects multiple packages. SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption. See references for individual vulnerability details...

CLEANSTART-2026-OZ83684 SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption

Security vulnerability affects the consul package. SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption...

CentOS Linux 8 [TuxCare] Security Update: libssh / libssh-config / libssh-devel (CENTOS-STREAM8:CLSA-2026:1778003186)

The CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS- STREAM8:CLSA-2026:1778003186 advisory. - A flaw was found in libssh. The API function sshgethexa is vulnerable to a denial of service when processing zero-length input. This ca...