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Microsoft Security Response CenterCVE-2026-29181

OpenTelemetry-Go multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)

Mariner

Read the vendor bulletin Get alerts for azl3 containerd2 2.1.6-1 on Azure Linux
7.5CVSS out of 10Medium severity
Scope

What the vendor says is affected

  • azl3 containerd2 2.1.6-1 on Azure Linux 3.0
  • azl3 containerized-data-importer 1.62.0-3 on Azure Linux 3.0
  • azl3 gh 2.62.0-15 on Azure Linux 3.0
  • azl3 telegraf 1.31.0-19 on Azure Linux 3.0
  • azl3 azurelinux-image-tools 1.2.0-2 on Azure Linux 3.0
  • azl3 cloud-provider-kubevirt 0.5.1-3 on Azure Linux 3.0
  • azl3 containerd2 2.0.0-18 on Azure Linux 3.0
  • azl3 containerized-data-importer 1.62.0-2 on Azure Linux 3.0
  • azl3 coredns 1.11.4-15 on Azure Linux 3.0
  • azl3 cri-tools 1.32.0-4 on Azure Linux 3.0
  • cbl2 etcd 3.5.28-1 on CBL Mariner 2.0
  • azl3 etcd 3.5.28-1 on Azure Linux 3.0
  • azl3 gh 2.62.0-13 on Azure Linux 3.0
  • azl3 keda 2.14.1-11 on Azure Linux 3.0
  • azl3 telegraf 1.31.0-17 on Azure Linux 3.0
  • azl3 ignition-flatcar 2.22.0-1 on Azure Linux 3.0
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-29181View CVSS, KEV, EPSS, and threat context
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