CVE-2026-56855

A flaw was found in golang.org/x/crypto/ssh. After a channel has been established, a remote malicious peer could send specially crafted messages. This could lead to a deadlock of the entire connection, resulting in a Denial of Service DoS for the affected system. Mitigation Red Hat is not aware o...

Linux Distros Unpatched Vulnerability : CVE-2026-78662

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Previously, a channel registered in the mux's chanList is not usable until it is established. A malicious peer was able flood the channel's incomingRequests,...

AZL-99249 CVE-2026-78662 affecting package kubernetes 1.30.10-29

Previously, a channel registered in the mux's chanList is not usable until it is established. A malicious peer was able flood the channel's incomingRequests, deadlocking the entire connection. Now, we add an atomic established state, set when a channel becomes usable. Until such a time,...

AZL-99207 CVE-2026-78662 affecting package docker-compose 2.27.0-13

Previously, a channel registered in the mux's chanList is not usable until it is established. A malicious peer was able flood the channel's incomingRequests, deadlocking the entire connection. Now, we add an atomic established state, set when a channel becomes usable. Until such a time,...

CVE-2026-78662

Previously, a channel registered in the mux's chanList is not usable until it is established. A malicious peer was able flood the channel's incomingRequests, deadlocking the entire connection. Now, we add an atomic established state, set when a channel becomes usable. Until such a time,...

AZL-99135 CVE-2026-56855 affecting package cri-o 1.30.1-1

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

AZL-99255 CVE-2026-56855 affecting package kubernetes 1.30.10-29

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

AZL-99159 CVE-2026-56855 affecting package cert-manager 1.12.15-12

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

CVE-2026-78662

Previously, a channel registered in the mux's chanList is not usable until it is established. A malicious peer was able flood the channel's incomingRequests, deadlocking the entire connection. Now, we add an atomic established state, set when a channel becomes usable. Until such a time,...

crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages

A flaw was found in the crypto/tls package within the Go golang standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock,...

CLSA-2026-1779152708 grafana: Fix of CVE-2026-32283

CVE-2026-32283: rebuild against golang = 1.25.7-1.el96.tuxcare.els5 to fix crypto/tls DoS where multiple post-handshake KeyUpdate messages in a single TLS 1.3 record deadlock the connection setReadTrafficSecret reacquired the conn mutex via sendAlert...

CVE-2026-32283

CVE-2026-32283: In TLS 1.3, multiple KeyUpdate messages in a single record can cause a deadlock and DoS. Affected packages were fixed by updating Go to go1.25.9 or go1.26.2 in SUSE/openSUSE advisories (SUSE-SU-2026:1320-1 and 1321-1) and related Leap 16.0 patches. OpenSUSE advisories list CVE-202...

CVE-2026-32283 Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3...