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Microsoft Security Response CenterCVE-2026-53495

containerd CRI ExecSync Goroutine Leak Leading to Node-Level Denial of Service

Medium 1 CVE Published Sep 16, 2026 at 1:02 AM UTC
Get alerts for azl3 moby-containerd-cc 1.7.7-16 on Azure Linux

Summary

Mariner

Products covered

  • azl3 moby-containerd-cc 1.7.7-16 on Azure Linux 3.0

  • azl3 containerd2 2.2.4-8 on Azure Linux 3.0

  • azl3 moby-containerd-cc 1.7.7-17 on Azure Linux 3.0

  • azl3 containerd2 2.3.4-1 on Azure Linux 3.0

  • azl3 moby-containerd-cc 1.7.7-19 on Azure Linux 3.0

Remediation

Release Notes

Vendor-listed fixes

  • 2.3.4-1

  • 1.7.7-19

  • 2.3.7-1

CVEs in this advisory 1

CVE-2026-53495
Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • Added affected products: azl3 moby-containerd-cc 1.7.7-19 on Azure Linux 3.0.
    • Added fixed versions: 1.7.7-19, 2.3.7-1.
    • Removed fixed versions: 2.4.0-1.
    • Added fixed versions: 2.4.0-1.
    • Added 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.
    • Added fixed versions: 2.3.4-1.
    • The vendor changed its remediation guidance.

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.

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