Linux Distros Unpatched Vulnerability : CVE-2026-73646

high Nessus Plugin ID 337160

Language:

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.

- PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Prior to 8.5.18, lib/previous-map.js loadMap() passes attacker-controlled sourceMappingURL values to join(dirname(opts.from), annotation), and loadFile() permits traversed or absolute .map paths, allowing untrusted CSS processed without map: false to disclose sourcesContent from arbitrary reachable .map files through result.map. This issue is fixed in version 8.5.18. (CVE-2026-73646)

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

Solution

There is no known solution at this time.

Plugin Details

Severity: High

ID: 337160

File Name: unpatched_CVE_2026_73646.nasl

Version: 1.11

Type: Local

Agent: unix

Family: Misc.

Published: 8/18/2026

Updated: 9/3/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.7

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.6

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

CVSS Score Source: CVE-2026-73646

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:H/I:N/A:N

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:node-postcss, p-cpe:/a:centos:centos:grafana-azure-monitor, p-cpe:/a:centos:centos:grafana-cloudwatch, p-cpe:/a:centos:centos:grafana-elasticsearch, p-cpe:/a:centos:centos:grafana-graphite, p-cpe:/a:centos:centos:grafana-influxdb, p-cpe:/a:centos:centos:grafana-loki, p-cpe:/a:centos:centos:grafana-mssql, p-cpe:/a:centos:centos:grafana-mysql, p-cpe:/a:centos:centos:grafana-opentsdb, p-cpe:/a:centos:centos:grafana-pcp, p-cpe:/a:centos:centos:grafana-postgres, p-cpe:/a:centos:centos:grafana-prometheus, p-cpe:/a:centos:centos:grafana-selinux, p-cpe:/a:centos:centos:grafana-stackdriver, p-cpe:/a:centos:centos:grafana, p-cpe:/a:centos:centos:python-syspurpose, p-cpe:/a:centos:centos:qt6-qtbase-common, p-cpe:/a:centos:centos:qt6-qtbase-devel, p-cpe:/a:centos:centos:qt6-qtbase-examples, p-cpe:/a:centos:centos:qt6-qtbase-gui, p-cpe:/a:centos:centos:qt6-qtbase-mysql, p-cpe:/a:centos:centos:qt6-qtbase-odbc, p-cpe:/a:centos:centos:qt6-qtbase-postgresql, p-cpe:/a:centos:centos:qt6-qtbase-private-devel, p-cpe:/a:centos:centos:qt6-qtbase-static, p-cpe:/a:centos:centos:qt6-qtbase, p-cpe:/a:centos:centos:rh-podman-desktop, p-cpe:/a:centos:centos:rhsm-gtk, p-cpe:/a:centos:centos:subscription-manager-cockpit, p-cpe:/a:centos:centos:subscription-manager-gui, p-cpe:/a:centos:centos:subscription-manager-initial-setup-addon, p-cpe:/a:centos:centos:subscription-manager-migration, p-cpe:/a:centos:centos:subscription-manager-plugin-container, p-cpe:/a:centos:centos:subscription-manager-plugin-ostree, p-cpe:/a:centos:centos:subscription-manager-rhsm-certificates, p-cpe:/a:centos:centos:subscription-manager-rhsm, p-cpe:/a:centos:centos:subscription-manager, p-cpe:/a:debian:debian_linux:node-postcss, p-cpe:/a:redhat:enterprise_linux:grafana-azure-monitor, p-cpe:/a:redhat:enterprise_linux:grafana-cloudwatch, p-cpe:/a:redhat:enterprise_linux:grafana-elasticsearch, p-cpe:/a:redhat:enterprise_linux:grafana-graphite, p-cpe:/a:redhat:enterprise_linux:grafana-influxdb, p-cpe:/a:redhat:enterprise_linux:grafana-loki, p-cpe:/a:redhat:enterprise_linux:grafana-mssql, p-cpe:/a:redhat:enterprise_linux:grafana-mysql, p-cpe:/a:redhat:enterprise_linux:grafana-opentsdb, p-cpe:/a:redhat:enterprise_linux:grafana-pcp, p-cpe:/a:redhat:enterprise_linux:grafana-postgres, p-cpe:/a:redhat:enterprise_linux:grafana-prometheus, p-cpe:/a:redhat:enterprise_linux:grafana-selinux, p-cpe:/a:redhat:enterprise_linux:grafana-stackdriver, p-cpe:/a:redhat:enterprise_linux:grafana, p-cpe:/a:redhat:enterprise_linux:python-syspurpose, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-common, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-devel, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-examples, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-gui, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-mysql, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-odbc, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-postgresql, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-private-devel, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase-static, p-cpe:/a:redhat:enterprise_linux:qt6-qtbase, p-cpe:/a:redhat:enterprise_linux:rh-podman-desktop, p-cpe:/a:redhat:enterprise_linux:rhsm-gtk, p-cpe:/a:redhat:enterprise_linux:subscription-manager-cockpit, p-cpe:/a:redhat:enterprise_linux:subscription-manager-gui, p-cpe:/a:redhat:enterprise_linux:subscription-manager-initial-setup-addon, p-cpe:/a:redhat:enterprise_linux:subscription-manager-migration, p-cpe:/a:redhat:enterprise_linux:subscription-manager-plugin-container, p-cpe:/a:redhat:enterprise_linux:subscription-manager-plugin-ostree, p-cpe:/a:redhat:enterprise_linux:subscription-manager-rhsm-certificates, p-cpe:/a:redhat:enterprise_linux:subscription-manager-rhsm, p-cpe:/a:redhat:enterprise_linux:subscription-manager

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: 7/24/2026

Reference Information

CVE: CVE-2026-73646

Detections

Analytics