UNKNOWN Microsoft

CVE-2026-53493

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

Microsoft Security Update 2026-Sep: Containerd has image-pull DoS via crafted OCI index graph amplification

Affected Products

azl3 containerd2 2.3.4-1 on Azure Linux 3.0
azl3 moby-containerd-cc 1.7.7-17 on Azure Linux 3.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53493
https://nvd.nist.gov/vuln/detail/CVE-2026-53493

Published: 2026-09-08 · Source: Microsoft · Feed updated: 2026-11-10

This unknown severity vulnerability was published on 2026-09-08 via Microsoft. Affected: azl3 containerd2 2.3.4-1 on Azure Linux 3.0, azl3 moby-containerd-cc 1.7.7-17 on Azure Linux 3.0.

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