ALAS2023-2026-2009


Amazon Linux 2023 Security Advisory: ALAS2023-2026-2009
Advisory Released Date: 2026-08-04
Advisory Updated Date: 2026-08-04
Severity: Important

Issue Overview:

Incorrect implementation of authentication algorithm in ASP.NET Core allows an authorized attacker to elevate privileges over a network. (CVE-2026-47300)

Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network. (CVE-2026-47302)

Authentication bypass by assumed-immutable data in ASP.NET Core allows an authorized attacker to elevate privileges over a network. (CVE-2026-47303)

Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network. (CVE-2026-47304)

Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to deny service over a network. (CVE-2026-50524)

Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network. (CVE-2026-50525)

Improper link resolution before file access ('link following') in .NET allows an authorized attacker to perform tampering locally. (CVE-2026-50526)

Stack-based buffer overflow in .NET Framework allows an unauthorized attacker to deny service over a network. (CVE-2026-50527)

Incorrect authorization in .NET allows an unauthorized attacker to bypass a security feature over a network. (CVE-2026-50528)

Protection mechanism failure in .NET Framework allows an unauthorized attacker to execute code locally. (CVE-2026-50646)

Allocation of resources without limits or throttling in .NET Framework allows an unauthorized attacker to deny service over a network. (CVE-2026-50648)

Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally. (CVE-2026-50649)

Improper control of generation of code ('code injection') in .NET Framework allows an unauthorized attacker to elevate privileges locally. (CVE-2026-50650)

Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network. (CVE-2026-50651)

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network. (CVE-2026-56170)

Access of resource using incompatible type ('type confusion') in .NET Core allows an unauthorized attacker to deny service over a network. (CVE-2026-57108)


Affected Packages:

dotnet10.0


Issue Correction:
Run dnf update dotnet10.0 --releasever 2023.12.20260803 or dnf update --advisory ALAS2023-2026-2009 --releasever 2023.12.20260803 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation

New Packages:
aarch64:
    dotnet-host-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-sdk-aot-10.0-debuginfo-10.0.110-1.amzn2023.0.1.aarch64
    dotnet10.0-debuginfo-10.0.110-1.amzn2023.0.1.aarch64
    aspnetcore-targeting-pack-10.0-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-sdk-10.0-debuginfo-10.0.110-1.amzn2023.0.1.aarch64
    dotnet-sdk-dbg-10.0-10.0.110-1.amzn2023.0.1.aarch64
    aspnetcore-runtime-10.0-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-templates-10.0-10.0.110-1.amzn2023.0.1.aarch64
    dotnet-apphost-pack-10.0-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-sdk-10.0-source-built-artifacts-10.0.110-1.amzn2023.0.1.aarch64
    aspnetcore-runtime-dbg-10.0-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-runtime-dbg-10.0-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-runtime-10.0-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-host-debuginfo-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-targeting-pack-10.0-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-hostfxr-10.0-debuginfo-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-apphost-pack-10.0-debuginfo-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-hostfxr-10.0-10.0.10-1.amzn2023.0.1.aarch64
    dotnet-10.0.110-1.amzn2023.0.1.aarch64
    dotnet-sdk-aot-10.0-10.0.110-1.amzn2023.0.1.aarch64
    dotnet-runtime-10.0-debuginfo-10.0.10-1.amzn2023.0.1.aarch64
    dotnet10.0-debugsource-10.0.110-1.amzn2023.0.1.aarch64
    dotnet-sdk-10.0-10.0.110-1.amzn2023.0.1.aarch64

src:
    dotnet10.0-10.0.110-1.amzn2023.0.1.src

x86_64:
    dotnet-sdk-10.0-source-built-artifacts-10.0.110-1.amzn2023.0.1.x86_64
    dotnet-runtime-10.0-debuginfo-10.0.10-1.amzn2023.0.1.x86_64
    aspnetcore-runtime-10.0-10.0.10-1.amzn2023.0.1.x86_64
    dotnet-runtime-dbg-10.0-10.0.10-1.amzn2023.0.1.x86_64
    dotnet-host-10.0.10-1.amzn2023.0.1.x86_64
    dotnet-host-debuginfo-10.0.10-1.amzn2023.0.1.x86_64
    aspnetcore-targeting-pack-10.0-10.0.10-1.amzn2023.0.1.x86_64
    aspnetcore-runtime-dbg-10.0-10.0.10-1.amzn2023.0.1.x86_64
    dotnet-hostfxr-10.0-debuginfo-10.0.10-1.amzn2023.0.1.x86_64
    dotnet-runtime-10.0-10.0.10-1.amzn2023.0.1.x86_64
    dotnet-sdk-10.0-debuginfo-10.0.110-1.amzn2023.0.1.x86_64
    dotnet10.0-debuginfo-10.0.110-1.amzn2023.0.1.x86_64
    dotnet-10.0.110-1.amzn2023.0.1.x86_64
    dotnet-sdk-aot-10.0-debuginfo-10.0.110-1.amzn2023.0.1.x86_64
    dotnet-templates-10.0-10.0.110-1.amzn2023.0.1.x86_64
    dotnet-apphost-pack-10.0-10.0.10-1.amzn2023.0.1.x86_64
    dotnet-hostfxr-10.0-10.0.10-1.amzn2023.0.1.x86_64
    dotnet-targeting-pack-10.0-10.0.10-1.amzn2023.0.1.x86_64
    dotnet-sdk-aot-10.0-10.0.110-1.amzn2023.0.1.x86_64
    dotnet10.0-debugsource-10.0.110-1.amzn2023.0.1.x86_64
    dotnet-apphost-pack-10.0-debuginfo-10.0.10-1.amzn2023.0.1.x86_64
    dotnet-sdk-10.0-10.0.110-1.amzn2023.0.1.x86_64
    dotnet-sdk-dbg-10.0-10.0.110-1.amzn2023.0.1.x86_64