Linux Distros Unpatched Vulnerability : CVE-2026-27142

medium Nessus Plugin ID 301393

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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.

- Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value refresh. A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actions in the meta content attribute which follow url= by setting htmlmetacontenturlescape=0. (CVE-2026-27142)

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: Medium

ID: 301393

File Name: unpatched_CVE_2026_27142.nasl

Version: 1.5

Type: local

Agent: unix

Family: Misc.

Published: 3/7/2026

Updated: 3/19/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-27142

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.6

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:redhat:enterprise_linux:golang-docs, p-cpe:/a:redhat:enterprise_linux:golang-src, p-cpe:/a:centos:centos:golang-docs, p-cpe:/a:canonical:ubuntu_linux:golang-1.25, cpe:/o:debian:debian_linux:12.0, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:debian:debian_linux:golang-1.15, cpe:/o:centos:centos:8, p-cpe:/a:canonical:ubuntu_linux:golang-1.24, p-cpe:/a:debian:debian_linux:golang-1.19, p-cpe:/a:redhat:enterprise_linux:golang, p-cpe:/a:redhat:enterprise_linux:golang-bin, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:redhat:enterprise_linux:go-toolset, p-cpe:/a:centos:centos:golang-race, p-cpe:/a:centos:centos:golang-misc, p-cpe:/a:centos:centos:golang-src, p-cpe:/a:centos:centos:golang, p-cpe:/a:centos:centos:golang-bin, p-cpe:/a:redhat:enterprise_linux:golang-tests, p-cpe:/a:centos:centos:golang-tests, p-cpe:/a:redhat:enterprise_linux:golang-misc, p-cpe:/a:debian:debian_linux:golang-1.24, p-cpe:/a:redhat:enterprise_linux:golang-race, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:centos:centos:go-toolset

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: 3/5/2026

Reference Information

CVE: CVE-2026-27142

Detections

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