Detections
Analytics

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

medium Nessus Plugin ID 347978

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Synopsis

The container runtime installed on the remote host is affected by a denial of service vulnerability.

Description

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 goroutine when CRI ExecSync is used by exec probes or lifecycle hooks that launch long-lived background child processes retaining standard input and output pipes. The input and output drain phase has no default timeout and did not stop when the request context was canceled, so repeated ExecSync invocations can accumulate blocked goroutines and host memory. The resulting resource exhaustion can cause the OOM killer to terminate containerd, leaving the container runtime unavailable until restart.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Containerd version 1.7.35, 2.0.12, 2.2.8, 2.3.5 or later.

See Also

http://www.nessus.org/u?21ad2d74

Plugin Details

Severity: Medium

ID: 347978

File Name: containerd_CVE-2026-53495.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 9/18/2026

Updated: 9/18/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.6

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-53495

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v4

Risk Factor: Medium

Base Score: 6.8

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:linuxfoundation:containerd

Patch Publication Date: 9/9/2026

Vulnerability Publication Date: 9/9/2026

Reference Information

CVE: CVE-2026-53495

IAVA: 2026-A-1024