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CVE-2026-53493

Containerd has image-pull DoS via crafted OCI index graph amplification

MEDIUM
6.9
CVSS Score
Published: September 25, 2026 at 12:06 AM UTC
Updated: September 28, 2026 at 03:17 PM UTC
1 product affected across 1 vendorContainerd

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

containerd is an open-source container runtime. Prior to versions 1.7.36, 2.0.13, 2.2.9, 2.3.6, and 2.4.1, a crafted OCI index graph can force very high CPU/memory usage during PullImage (before container start), causing long ContainerCreating stalls and, at larger sizes, node/runtime instability. Versions 1.7.36, 2.0.13, 2.2.9, 2.3.6, and 2.4.1 fix the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Containerd· Containerd
60%
v < 1.7.36v < 2.0.13v < 2.2.9v < 2.3.6= 2.4.0
Affected range stops below 1.7.36, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.0.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.2.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.3.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM
Source: cverecord
https://github.com/containerd/containerd/security/advisories/GHSA-pg57-6jwg-q645

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMGitHub_M
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-400CWE-770CWE-834

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