ALAS2027-2026-080

References: CVE-2026-58649  CVE-2026-62886  CVE-2026-69806 
FAQs regarding Amazon Linux ALAS/CVE Severity

Issue Overview:

Origin validation error in .NET allows an unauthorized attacker to disclose information over a network. (CVE-2026-58649)

Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally. (CVE-2026-62886)

Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally. (CVE-2026-69806)

Issue Correction:
Run yum update dotnet10.0 to update your system.

New Packages:

aarch64:
    dotnet-host-debuginfo-10.0.12-1.amzn2027.0.1.aarch64
    dotnet-hostfxr-10.0-debuginfo-10.0.12-1.amzn2027.0.1.aarch64
    dotnet-sdk-aot-10.0-debuginfo-10.0.112-1.amzn2027.0.1.aarch64
    dotnet-runtime-10.0-debuginfo-10.0.12-1.amzn2027.0.1.aarch64
    aspnetcore-runtime-10.0-10.0.12-1.amzn2027.0.1.aarch64
    dotnet-host-10.0.12-1.amzn2027.0.1.aarch64
    dotnet-targeting-pack-10.0-10.0.12-1.amzn2027.0.1.aarch64
    dotnet-apphost-pack-10.0-debuginfo-10.0.12-1.amzn2027.0.1.aarch64
    aspnetcore-runtime-dbg-10.0-10.0.12-1.amzn2027.0.1.aarch64
    dotnet-runtime-dbg-10.0-10.0.12-1.amzn2027.0.1.aarch64
    dotnet-sdk-10.0-debuginfo-10.0.112-1.amzn2027.0.1.aarch64
    dotnet-10.0.112-1.amzn2027.0.1.aarch64
    dotnet-sdk-10.0-source-built-artifacts-10.0.112-1.amzn2027.0.1.aarch64
    dotnet-templates-10.0-10.0.112-1.amzn2027.0.1.aarch64
    dotnet-sdk-dbg-10.0-10.0.112-1.amzn2027.0.1.aarch64
    dotnet-hostfxr-10.0-10.0.12-1.amzn2027.0.1.aarch64
    aspnetcore-targeting-pack-10.0-10.0.12-1.amzn2027.0.1.aarch64
    dotnet-apphost-pack-10.0-10.0.12-1.amzn2027.0.1.aarch64
    dotnet-runtime-10.0-10.0.12-1.amzn2027.0.1.aarch64
    dotnet-sdk-aot-10.0-10.0.112-1.amzn2027.0.1.aarch64
    dotnet10.0-debugsource-10.0.112-1.amzn2027.0.1.aarch64
    dotnet-sdk-10.0-10.0.112-1.amzn2027.0.1.aarch64

src:
    dotnet10.0-10.0.112-1.amzn2027.0.1.src

x86_64:
    dotnet-sdk-10.0-source-built-artifacts-10.0.112-1.amzn2027.0.1.x86_64
    dotnet-runtime-10.0-debuginfo-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-hostfxr-10.0-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-sdk-aot-10.0-debuginfo-10.0.112-1.amzn2027.0.1.x86_64
    aspnetcore-runtime-dbg-10.0-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-sdk-10.0-debuginfo-10.0.112-1.amzn2027.0.1.x86_64
    aspnetcore-runtime-10.0-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-hostfxr-10.0-debuginfo-10.0.12-1.amzn2027.0.1.x86_64
    aspnetcore-targeting-pack-10.0-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-host-debuginfo-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-templates-10.0-10.0.112-1.amzn2027.0.1.x86_64
    dotnet-apphost-pack-10.0-debuginfo-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-runtime-dbg-10.0-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-host-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-10.0.112-1.amzn2027.0.1.x86_64
    dotnet-apphost-pack-10.0-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-sdk-dbg-10.0-10.0.112-1.amzn2027.0.1.x86_64
    dotnet-targeting-pack-10.0-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-runtime-10.0-10.0.12-1.amzn2027.0.1.x86_64
    dotnet-sdk-aot-10.0-10.0.112-1.amzn2027.0.1.x86_64
    dotnet-sdk-10.0-10.0.112-1.amzn2027.0.1.x86_64
    dotnet10.0-debugsource-10.0.112-1.amzn2027.0.1.x86_64