Containerd < 1.7.35 / 2.0.x < 2.0.12 / 2.2.x < 2.2.8 / 2.3.x < 2.3.5 DoS

The version of Containerd on the remote host is prior to 1.7.35, 2.0.x prior to 2.0.12, 2.2.x prior to 2.2.8, or 2.3.x prior to 2.3.5. It is, therefore, affected by a denial of service vulnerability. containerd on Linux with the CRI plugin enabled can indefinitely block the drainExecSyncIO...

GO-2026-6444 containerd: CRI ExecSync Goroutine Leak Leads to Node-Level Denial of Service in github.com/containerd/containerd

containerd: CRI ExecSync Goroutine Leak Leads to Node-Level Denial of Service in github.com/containerd/containerd...

Linux Distros Unpatched Vulnerability : CVE-2026-53495

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd on Linux with the CRI plugin enabled can indefinitely bloc...

CVE-2026-53495 containerd CRI ExecSync Goroutine Leak Leading to Node-Level Denial of Service

containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd on Linux with the CRI plugin enabled can indefinitely block the drainExecSyncIO goroutine in internal/cri/server/containerexecsync.go when CRI ExecSync is used by exec probes or lifecycle hooks...

CVE-2026-53495

containerd on Linux with the CRI plugin enabled is affected by a goroutine leak in drainExecSyncIO (internal/cri/server/container_execsync.go). When exec probes or lifecycle hooks launch long-lived background child processes that retain stdin/stdout pipes, the input/output drain phase—lacking a d...

CVE-2026-53495

containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd on Linux with the CRI plugin enabled can indefinitely block the drainExecSyncIO goroutine in internal/cri/server/containerexecsync.go when CRI ExecSync is used by exec probes or lifecycle hooks...

CVE-2026-53495 containerd CRI ExecSync Goroutine Leak Leading to Node-Level Denial of Service

containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd on Linux with the CRI plugin enabled can indefinitely block the drainExecSyncIO goroutine in internal/cri/server/containerexecsync.go when CRI ExecSync is used by exec probes or lifecycle hooks...

EUVD-2026-77684

containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd on Linux with the CRI plugin enabled can indefinitely block the drainExecSyncIO goroutine in internal/cri/server/containerexecsync.go when CRI ExecSync is used by exec probes or lifecycle hooks...

GHSA-7JXH-36Q5-GCQV containerd: CRI ExecSync Goroutine Leak Leads to Node-Level Denial of Service

Impact A bug in containerd's CRI ExecSync implementation allows exec probes and lifecycle hooks with background child processes to keep containerd's stdio-drain goroutines indefinitely blocked. Because the I/O drain phase lacks a default timeout or context cancellation handling, repeated ExecSync...

PT-2026-89204

Name of the Vulnerable Software and Affected Versions containerd versions prior to 1.7.35 containerd versions prior to 2.0.12 containerd versions prior to 2.2.8 containerd versions prior to 2.3.5 Description On Linux systems with the CRI plugin enabled, a bug in the CRI ExecSync implementation ca...