Detections
Analytics

Amazon Linux 2023 : aspnetcore-runtime-9.0, aspnetcore-runtime-dbg-9.0, aspnetcore-targeting-pack-9.0 (ALAS2023-2026-1506)

high Nessus Plugin ID 304595

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1506 advisory.

 Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.
 (CVE-2026-26127)

 Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network. (CVE-2026-26130)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Run 'dnf update dotnet9.0 --releasever 2023.10.20260330' or or 'dnf update --advisory ALAS2023-2026-1506 --releasever 2023.10.20260330' to update your system.

See Also

https://alas.aws.amazon.com//AL2023/ALAS2023-2026-1506.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2026-26127.html

https://explore.alas.aws.amazon.com/CVE-2026-26130.html

Plugin Details

Severity: High

ID: 304595

File Name: al2023_ALAS2023-2026-1506.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/1/2026

Updated: 4/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-26130

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:aspnetcore-runtime-9.0, p-cpe:/a:amazon:linux:dotnet-host, p-cpe:/a:amazon:linux:dotnet9.0-debugsource, p-cpe:/a:amazon:linux:aspnetcore-runtime-dbg-9.0, p-cpe:/a:amazon:linux:dotnet-runtime-9.0, p-cpe:/a:amazon:linux:dotnet-templates-9.0, p-cpe:/a:amazon:linux:dotnet-sdk-aot-9.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-sdk-9.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-hostfxr-9.0, p-cpe:/a:amazon:linux:dotnet, p-cpe:/a:amazon:linux:dotnet-sdk-9.0-source-built-artifacts, p-cpe:/a:amazon:linux:dotnet-targeting-pack-9.0, p-cpe:/a:amazon:linux:dotnet-sdk-9.0, p-cpe:/a:amazon:linux:dotnet-sdk-dbg-9.0, p-cpe:/a:amazon:linux:dotnet-sdk-aot-9.0, p-cpe:/a:amazon:linux:dotnet-host-debuginfo, p-cpe:/a:amazon:linux:dotnet-runtime-9.0-debuginfo, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:dotnet-apphost-pack-9.0-debuginfo, p-cpe:/a:amazon:linux:dotnet-apphost-pack-9.0, p-cpe:/a:amazon:linux:dotnet-hostfxr-9.0-debuginfo, p-cpe:/a:amazon:linux:netstandard-targeting-pack-2.1, p-cpe:/a:amazon:linux:dotnet-runtime-dbg-9.0, p-cpe:/a:amazon:linux:aspnetcore-targeting-pack-9.0

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 4/1/2026

Vulnerability Publication Date: 3/10/2026

Reference Information

CVE: CVE-2026-26127, CVE-2026-26130

IAVA: 2026-A-0224