Medium severity · published Sep 25, 2026
CVE-2026-53493
Containerd has image-pull DoS via crafted OCI index graph amplification
6.9
CVSS
0.4%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
containerd · containerd
>= 2.0.0, < 2.0.13; < 1.7.36; >= 2.1.0, < 2.2.9; >= 2.3.0, < 2.3.6; = 2.4.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53493
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-53493
x_refsource_CONFIRM
https://github.com/containerd/containerd/security/advisories/GHSA-pg57-6jwg-q645
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