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Microsoft Security Response CenterCVE-2026-39831

Invoking bypass of FIDO/U2F security keys physical interaction in golang.org/x/crypto/ssh

HighVendor CVSS 9.1 / 10 1 CVE Published May 27, 2026 at 1:14 AM UTC

Summary

Mariner

Products covered

  • azl3 kubevirt-openvmm 1.9.0-1 on Azure Linux 3.0

Remediation

Release Notes

CVEs in this advisory 1

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.

    • Severity changed from Critical to High.
    • Added affected products: azl3 kubevirt-openvmm 1.9.0-1 on Azure Linux 3.0.
    • Removed affected products: azl3 cert-manager 1.12.15-6 on Azure Linux 3.0, azl3 cf-cli 8.7.11-5 on Azure Linux 3.0, azl3 docker-buildx 0.14.0-11 on Azure Linux 3.0, azl3 docker-compose 2.27.0-9 on Azure Linux 3.0, azl3 gh 2.62.0-15 on Azure Linux....
    • 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.