AlmaLinux 9 : .NET 8.0 (ALSA-2026:86169)

critical Nessus Plugin ID 369998

Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:86169 advisory.

* dotnet10.0: dotnet9.0: dotnet: dotnet8.0: .NET Denial of Service Vulnerability (CVE-2026-58280)
* dotnet10.0: dotnet8.0: dotnet9.0: dotnet: .NET Information Disclosure Vulnerability (CVE-2026-66822)
* dotnet9.0: dotnet: dotnet10.0: dotnet8.0: .NET Denial of Service Vulnerability (CVE-2026-69651)
* dotnet8.0: dotnet10.0: dotnet: dotnet9.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70159)
* dotnet10.0: dotnet8.0: dotnet9.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-70175)
* dotnet10.0: dotnet8.0: dotnet9.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-70179)
* dotnet9.0: dotnet8.0: dotnet10.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70181)
* dotnet: dotnet10.0: dotnet9.0: dotnet8.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-70183)
* dotnet10.0: dotnet9.0: dotnet8.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70186)
* dotnet: ASP.NET Core Security Feature Bypass Vulnerability (CVE-2026-70188)
* dotnet9.0: dotnet8.0: dotnet10.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70196)
* dotnet: ASP.NET Core Tampering Vulnerability (CVE-2026-88092)
* dotnet10.0: dotnet8.0: dotnet9.0: dotnet: MessagePack: Nested arrays can blow past buffer length limits (CVE-2026-92707)
* dotnet8.0: Active Directory Federation Services (AD FS) Spoofing Vulnerability (CVE-2026-96222)
* dotnet: dotnet8.0: dotnet9.0: dotnet10.0: .NET Elevation of Privilege Vulnerability (CVE-2026-96225)
* dotnet9.0: dotnet10.0: dotnet8.0: dotnet: ASP.NET Core Remote Code Execution Vulnerability (CVE-2026-96230)
* dotnet: dotnet9.0: dotnet10.0: dotnet8.0: .NET Elevation of Privilege Vulnerability (CVE-2026-96231)
* dotnet10.0: dotnet: dotnet8.0: dotnet9.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-96233)
* dotnet: dotnet10.0: dotnet9.0: dotnet8.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-96236)
* dotnet8.0: dotnet10.0: dotnet9.0: .NET Remote Code Execution Vulnerability (CVE-2026-96237)
* dotnet8.0: dotnet10.0: dotnet9.0: dotnet: .NET Security Feature Bypass Vulnerability (CVE-2026-96238)


Bug Fix(es) and Enhancement(s):

* Update .NET 8.0 to SDK 8.0.132 and Runtime 8.0.32 [almalinux-9.8.z] (JIRA:AlmaLinux-277793)

Tenable has extracted the preceding description block directly from the AlmaLinux 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

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2026:86169

https://errata.almalinux.org/9/ALSA-2026-86169.html

Plugin Details

Severity: Critical

ID: 369998

File Name: alma_linux_ALSA-2026-86169.nasl

Version: 1.1

Type: Local

Published: 10/21/2026

Updated: 10/21/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.42

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-96230

CVSS v3

Risk Factor: Critical

Base Score: 9.4

Temporal Score: 8.2

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

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

CVSS Score Source: CVE-2026-88092

Vulnerability Information

CPE: cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:aspnetcore-runtime-8.0, p-cpe:/a:alma:linux:aspnetcore-runtime-dbg-8.0, p-cpe:/a:alma:linux:aspnetcore-targeting-pack-8.0, p-cpe:/a:alma:linux:dotnet-apphost-pack-8.0, p-cpe:/a:alma:linux:dotnet-hostfxr-8.0, p-cpe:/a:alma:linux:dotnet-runtime-8.0, p-cpe:/a:alma:linux:dotnet-runtime-dbg-8.0, p-cpe:/a:alma:linux:dotnet-sdk-8.0-source-built-artifacts, p-cpe:/a:alma:linux:dotnet-sdk-8.0, p-cpe:/a:alma:linux:dotnet-sdk-dbg-8.0, p-cpe:/a:alma:linux:dotnet-targeting-pack-8.0, p-cpe:/a:alma:linux:dotnet-templates-8.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/20/2026

Vulnerability Publication Date: 10/13/2026

Reference Information

CVE: CVE-2026-58280, CVE-2026-66822, CVE-2026-69651, CVE-2026-70159, CVE-2026-70175, CVE-2026-70179, CVE-2026-70181, CVE-2026-70183, CVE-2026-70186, CVE-2026-70188, CVE-2026-70196, CVE-2026-88092, CVE-2026-92707, CVE-2026-96222, CVE-2026-96225, CVE-2026-96230, CVE-2026-96231, CVE-2026-96233, CVE-2026-96236, CVE-2026-96237, CVE-2026-96238

CWE: 125, 201, 290, 295, 427, 444, 59, 640, 770, 776, 79, 833, 863, 93

IAVA: 2026-A-1124

RHSA: 2026:86169