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CVE-2026-32203 · cross-distro fix matrix

CVE-2026-32203: Ludvig Pedersen discovered that the System.Security.Cryptography.Xml

Affects 1 Linux release across 15 (distro × package) combinations. First disclosed: 2026-04-28.

Fix per ecosystem

Each block below is a distro release where CVE-2026-32203 has a known fix. Run the listed command on that distro to remediate.

Ubuntu resolute

Source: Ubuntu USN

  • dotnet10→ fixed in10.0.107-10.0.7-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet10
  • aspnetcore-runtime-10.0→ fixed in10.0.7-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y aspnetcore-runtime-10.0
  • aspnetcore-runtime-dbg-10.0→ fixed in10.0.7-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y aspnetcore-runtime-dbg-10.0
  • aspnetcore-targeting-pack-10.0→ fixed in10.0.7-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y aspnetcore-targeting-pack-10.0
  • dotnet-apphost-pack-10.0→ fixed in10.0.7-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-apphost-pack-10.0
  • dotnet-host-10.0→ fixed in10.0.7-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-host-10.0
  • dotnet-hostfxr-10.0→ fixed in10.0.7-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-hostfxr-10.0
  • dotnet-runtime-10.0→ fixed in10.0.7-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-runtime-10.0
  • dotnet-runtime-dbg-10.0→ fixed in10.0.7-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-runtime-dbg-10.0
  • dotnet-sdk-10.0→ fixed in10.0.107-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-sdk-10.0
  • dotnet-sdk-10.0-source-built-artifacts→ fixed in10.0.107-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-sdk-10.0-source-built-artifacts
  • dotnet-sdk-aot-10.0→ fixed in10.0.107-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-sdk-aot-10.0
  • dotnet-sdk-dbg-10.0→ fixed in10.0.107-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-sdk-dbg-10.0
  • dotnet-targeting-pack-10.0→ fixed in10.0.7-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-targeting-pack-10.0
  • dotnet-templates-10.0→ fixed in10.0.107-0ubuntu1~26.04.1USN-8216-1
    sudo apt-get install --only-upgrade -y dotnet-templates-10.0
Are YOU affected by CVE-2026-32203?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

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