Detections
Analytics
AlmaLinux 8 : .NET 8.0 (ALSA-2026:21291)
high Nessus Plugin ID 317454
Language:
Synopsis
The remote AlmaLinux host is missing one or more security updates.Description
The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:21291 advisory.* serialize-javascript: serialize-javascript: Denial of Service via specially crafted array-like object serialization (CVE-2026-34043)
* dotnet: .NET: infinite loop allows an attacker to cause a denial of service (CVE-2026-42899)
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
Plugin Details
Severity: High
ID: 317454
File Name: alma_linux_ALSA-2026-21291.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 5/28/2026
Updated: 5/28/2026
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-2026-42899
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
CVSS Score Source: CVE-2026-34043
Vulnerability Information
CPE: p-cpe:/a:alma:linux:dotnet-sdk-8.0-source-built-artifacts, p-cpe:/a:alma:linux:dotnet-apphost-pack-8.0, p-cpe:/a:alma:linux:dotnet-hostfxr-8.0, cpe:/o:alma:linux:8::appstream, p-cpe:/a:alma:linux:dotnet-sdk-8.0, p-cpe:/a:alma:linux:aspnetcore-runtime-8.0, p-cpe:/a:alma:linux:dotnet-runtime-dbg-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-targeting-pack-8.0, p-cpe:/a:alma:linux:dotnet-sdk-dbg-8.0, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8, cpe:/o:alma:linux:8::supplementary, p-cpe:/a:alma:linux:dotnet-templates-8.0, cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::realtime, cpe:/o:alma:linux:8::highavailability, cpe:/o:alma:linux:8::resilientstorage, cpe:/o:alma:linux:8::baseos, cpe:/o:alma:linux:8::sap, p-cpe:/a:alma:linux:dotnet-runtime-8.0
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 5/27/2026
Vulnerability Publication Date: 3/27/2026
Reference Information
CVE: CVE-2026-34043, CVE-2026-42899