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...

AZL-100986 CVE-2026-53495 affecting package moby-containerd-cc 1.7.7-17

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...

AZL-101004 CVE-2026-53495 affecting package containerd2 2.3.4-1

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...

CVE-2026-53495: Uncontrolled Resource Consumption

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...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the drainExecSyncIO function in internal/cri/server/containerexecsync.go, pkg/cri/server/containerexecsync.go, and pkg/cri/sbserver/containerexecsync.go. An attacker can cause...

Allocation of Resources Without Limits or Throttling

Overview github.com/containerd/containerd/v2/pkg/cri/server is an industry-standard container runtime with an emphasis on simplicity, robustness and portability. It is available as a daemon for Linux and Windows, which can manage the complete container lifecycle of its host system: image transfer...