CVE-2026-53493 PUBLISHED

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

Assigner: GitHub_M
Reserved: 09.06.2026 Published: 25.09.2026 Updated: 25.09.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	containerd
Product	containerd
Versions	Version >= 2.0.0, < 2.0.13 is affected Version < 1.7.36 is affected Version >= 2.1.0, < 2.2.9 is affected Version >= 2.3.0, < 2.3.6 is affected Version = 2.4.0 is affected

References

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

Problem Types

CWE-400: Uncontrolled Resource Consumption CWE
CWE-770: Allocation of Resources Without Limits or Throttling CWE
CWE-834: Excessive Iteration CWE