openssh: Local MITM of X11 forwarding via abstract UNIX socket pre-binding in Red Hat Enterprise Linux OpenSSH client versions

A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack ca...

Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to multiple issues in OpenSSH

Summary IBM Watson Speech Services Cartridge is vulnerable to multiple issues in OpenSSH. OpenSSH is used in our Speech runtimes. These vulnerabilities have been addressed. Please read the details for remediation below. Vulnerability Details CVEID:CVE-2026-55655 DESCRIPTION: A flaw was found in...

MGASA-2026-0521 Updated openssh packages fix security vulnerabilities

Local mitm of x11 forwarding via abstract unix socket pre-binding in Red Hat Enterprise Linux openssh client versions. CVE-2026-55655 sftp in OpenSSH before 10.4 does not properly constrain the location of downloaded files when "sftp server:/path ." is used with an attacker-controlled server...

Updated openssh packages fix security vulnerabilities

Local mitm of x11 forwarding via abstract unix socket pre-binding in Red Hat Enterprise Linux openssh client versions. CVE-2026-55655 sftp in OpenSSH before 10.4 does not properly constrain the location of downloaded files when "sftp server:/path ." is used with an attacker-controlled server...

Astra Linux – vulnerability in xorg-server

A flaw was found in the X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or...

openssh: Local MITM of X11 forwarding via abstract UNIX socket pre-binding in Red Hat Enterprise Linux OpenSSH client versions

A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack ca...

Important: Red Hat Security Advisory: openssh security update

An update for openssh is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

openssh: Local MITM of X11 forwarding via abstract UNIX socket pre-binding in Red Hat Enterprise Linux OpenSSH client versions

A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack ca...

openssh: Local MITM of X11 forwarding via abstract UNIX socket pre-binding in Red Hat Enterprise Linux OpenSSH client versions

A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack ca...

Rocky Linux 10.1 [CIQ] Security Update: openssh / openssh-askpass / openssh-askpass-debuginfo / etc (crlsa-2025_20126)

The Rocky Linux 10.1 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202520126 advisory. openssh: OpenSSH SSHD Agent Forwarding and X11 Forwarding CVE-2025-32728 Tenable has extracted the preceding description block directly from the CIQ security...

CentOS Linux 8.5 [TuxCare] Security Update: openssh / openssh-askpass / openssh-cavs / openssh-clients / etc (CENTOS8.5:CLSA-2025:1749482356)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2025:1749482356 advisory. - In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent...

CentOS Linux 8 [TuxCare] Security Update: openssh / openssh-askpass / openssh-cavs / openssh-clients / etc (CENTOS-STREAM8:CLSA-2025:1749567722)

The CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS- STREAM8:CLSA-2025:1749567722 advisory. - In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and...

Rocky Linux 8 [CIQ] Security Update: openssh / openssh-askpass / openssh-askpass-debuginfo / etc Multiple Vulnerabilities (crlsa-2026_47755)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202647755 advisory. openssh: Local MITM of X11 forwarding via abstract UNIX socket pre-binding in Rocky Linux OpenSSH client versions CVE-2026-55655 openssh: Double free in...

AlmaLinux 9.6 [TuxCare] Security Update: openssh / openssh-askpass / openssh-clients / openssh-keycat / etc (ALMALINUX9.6:CLSA-2026:1778932403)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1778932403 advisory. - In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent...

AlmaLinux 9.2 [TuxCare] Security Update: openssh / openssh-askpass / openssh-clients / openssh-keycat / etc (ALMALINUX9.2:CLSA-2025:1751144978)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1751144978 advisory. - In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent...

Rocky Linux 9.6 [TuxCare] Security Update: openssh / openssh-askpass / openssh-clients / openssh-keycat / etc (ALMALINUX9.6:CLSA-2026:1778932403)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1778932403 advisory. - In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and age...

AlmaLinux 9.6 [TuxCare] Security Update: openssh / openssh-askpass / openssh-clients / openssh-keycat / etc (ALMALINUX9.6:CLSA-2026:1785143860)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1785143860 advisory. - A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This i...

CentOS Linux 8.4 [TuxCare] Security Update: openssh / openssh-askpass / openssh-cavs / openssh-clients / etc (CENTOS8.4:CLSA-2025:1749552061)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2025:1749552061 advisory. - In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent...

AlmaLinux 9.2 [TuxCare] Security Update: openssh / openssh-askpass / openssh-clients / openssh-keycat / etc (ALMALINUX9.2:CLSA-2026:1785153163)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1785153163 advisory. - A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This i...

CentOS Linux 7 [TuxCare] Security Update: openssh / openssh-askpass / openssh-cavs / openssh-clients / etc (CENTOS7:CLSA-2025:1749824947)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2025:1749824947 advisory. - In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent...