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Linux Distros Unpatched Vulnerability : CVE-2026-34043

high Nessus Plugin ID 304465

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted array-like object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5. (CVE-2026-34043)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-34043

https://security-tracker.debian.org/tracker/CVE-2026-34043

https://ubuntu.com/security/CVE-2026-34043

Plugin Details

Severity: High

ID: 304465

File Name: unpatched_CVE_2026_34043.nasl

Version: 1.6

Type: Local

Agent: unix

Family: Misc.

Published: 4/1/2026

Updated: 4/15/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.6

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

CVSS Score Source: CVE-2026-34043

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.9

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:U/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-6.0, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:centos:centos:dotnet-runtime-dbg-8.0, p-cpe:/a:centos:centos:dotnet-hostfxr-6.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-7.0, p-cpe:/a:centos:centos:grafana-prometheus, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-6.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-6.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-7.0-source-built-artifacts, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:dotnet-sdk-7.0-source-built-artifacts, p-cpe:/a:centos:centos:grafana-influxdb, p-cpe:/a:redhat:enterprise_linux:grafana-mssql, p-cpe:/a:redhat:enterprise_linux:dotnet7.0, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:redhat:enterprise_linux:grafana, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-8.0-source-built-artifacts, p-cpe:/a:centos:centos:dotnet-templates-6.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-6.0, p-cpe:/a:centos:centos:dotnet-targeting-pack-7.0, p-cpe:/a:centos:centos:dotnet-apphost-pack-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet, p-cpe:/a:redhat:enterprise_linux:grafana-azure-monitor, p-cpe:/a:centos:centos:dotnet-sdk-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-7.0, p-cpe:/a:centos:centos:dotnet, p-cpe:/a:centos:centos:grafana-cloudwatch, p-cpe:/a:centos:centos:netstandard-targeting-pack-2.1, p-cpe:/a:redhat:enterprise_linux:grafana-opentsdb, p-cpe:/a:redhat:enterprise_linux:grafana-elasticsearch, p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-8.0, p-cpe:/a:centos:centos:dotnet-sdk-8.0, p-cpe:/a:centos:centos:grafana-stackdriver, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-dbg-8.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-8.0, p-cpe:/a:redhat:enterprise_linux:grafana-influxdb, p-cpe:/a:centos:centos:grafana-elasticsearch, p-cpe:/a:centos:centos:dotnet-apphost-pack-6.0, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-6.0, p-cpe:/a:centos:centos:grafana-azure-monitor, p-cpe:/a:centos:centos:grafana-opentsdb, p-cpe:/a:centos:centos:dotnet-host, p-cpe:/a:centos:centos:dotnet-runtime-6.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-8.0, p-cpe:/a:redhat:enterprise_linux:grafana-postgres, p-cpe:/a:redhat:enterprise_linux:dotnet-host, p-cpe:/a:centos:centos:grafana-graphite, p-cpe:/a:redhat:enterprise_linux:grafana-prometheus, p-cpe:/a:centos:centos:aspnetcore-targeting-pack-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-8.0, p-cpe:/a:centos:centos:dotnet-templates-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-7.0, p-cpe:/a:centos:centos:dotnet-runtime-7.0, p-cpe:/a:centos:centos:dotnet-runtime-8.0, p-cpe:/a:centos:centos:dotnet-targeting-pack-8.0, p-cpe:/a:centos:centos:aspnetcore-runtime-6.0, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-8.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-7.0, p-cpe:/a:redhat:enterprise_linux:grafana-cloudwatch, p-cpe:/a:centos:centos:dotnet-apphost-pack-8.0, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:centos:centos:grafana-postgres, p-cpe:/a:centos:centos:grafana, p-cpe:/a:centos:centos:dotnet8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-8.0, p-cpe:/a:redhat:enterprise_linux:grafana-stackdriver, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-6.0-source-built-artifacts, p-cpe:/a:centos:centos:grafana-loki, p-cpe:/a:debian:debian_linux:node-serialize-javascript, p-cpe:/a:centos:centos:grafana-mysql, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:aspnetcore-targeting-pack-8.0, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:centos:centos:dotnet-templates-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-dbg-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-7.0, p-cpe:/a:redhat:enterprise_linux:grafana-loki, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-8.0, p-cpe:/a:centos:centos:aspnetcore-runtime-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-6.0, p-cpe:/a:centos:centos:aspnetcore-targeting-pack-6.0, p-cpe:/a:centos:centos:dotnet-sdk-8.0-source-built-artifacts, p-cpe:/a:redhat:enterprise_linux:dotnet6.0, p-cpe:/a:centos:centos:dotnet-sdk-6.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-dbg-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-6.0, p-cpe:/a:centos:centos:dotnet-hostfxr-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-7.0, p-cpe:/a:centos:centos:dotnet-hostfxr-8.0, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:centos:centos:dotnet-sdk-dbg-8.0, p-cpe:/a:centos:centos:aspnetcore-runtime-dbg-8.0, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:grafana-selinux, p-cpe:/a:redhat:enterprise_linux:netstandard-targeting-pack-2.1, p-cpe:/a:redhat:enterprise_linux:grafana-selinux, p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-6.0, p-cpe:/a:centos:centos:dotnet-sdk-6.0-source-built-artifacts, p-cpe:/a:centos:centos:dotnet6.0, p-cpe:/a:redhat:enterprise_linux:grafana-graphite, p-cpe:/a:redhat:enterprise_linux:grafana-mysql, p-cpe:/a:centos:centos:dotnet-targeting-pack-6.0, p-cpe:/a:canonical:ubuntu_linux:node-serialize-javascript, p-cpe:/a:centos:centos:aspnetcore-runtime-7.0, p-cpe:/a:centos:centos:dotnet7.0, p-cpe:/a:centos:centos:grafana-mssql

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/27/2026

Reference Information

CVE: CVE-2026-34043