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Linux Distros Unpatched Vulnerability : CVE-2026-106446

critical Nessus Plugin ID 371358

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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.

 - Handlebars provides the power necessary to let users build semantic templates. From 4.0.0 until 4.7.10, Handlebars.compile() and Handlebars.precompile() accept pre-parsed AST objects while validating only selected PathExpression, NumberLiteral, and BooleanLiteral values. This issue bypasses the AST validation introduced in version 4.7.9 for CVE-2026-33937. An attacker who can supply an object instead of a template string can place JavaScript expressions in unchecked values such as Program.blockParams.length, a non- PathExpression parameter depth, a non-string StringLiteral.value, or a non-string PathExpression.original.
 The compiler emits those values into generated JavaScript, causing code execution in the server process when compile output renders or wherever precompile output is loaded. Applications that pass only template strings are not affected. This issue is fixed in version 4.7.10. (CVE-2026-106446)

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-2026-106446

https://security-tracker.debian.org/tracker/CVE-2026-106446

https://ubuntu.com/security/CVE-2026-106446

Plugin Details

Severity: Critical

ID: 371358

File Name: unpatched_CVE_2026_106446.nasl

Version: 1.12

Type: Local

Agent: unix

Family: Misc.

Published: 10/23/2026

Updated: 11/13/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.61

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.5

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

CVSS Score Source: CVE-2026-106446

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9

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

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

Vulnerability Information

CPE: cpe:/a:redhat:enterprise_linux:8, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, 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:canonical:ubuntu_linux:26.10, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:canonical:ubuntu_linux:node-handlebars, p-cpe:/a:canonical:ubuntu_linux:ruby-handlebars-assets, p-cpe:/a:centos:centos:cockpit-bridge, p-cpe:/a:centos:centos:cockpit-dashboard, p-cpe:/a:centos:centos:cockpit-doc, p-cpe:/a:centos:centos:cockpit-machines, p-cpe:/a:centos:centos:cockpit-packagekit, p-cpe:/a:centos:centos:cockpit-pcp, p-cpe:/a:centos:centos:cockpit-storaged, p-cpe:/a:centos:centos:cockpit-system, p-cpe:/a:centos:centos:cockpit-ws, p-cpe:/a:centos:centos:cockpit, p-cpe:/a:centos:centos:mozjs60-devel, p-cpe:/a:centos:centos:mozjs60, p-cpe:/a:debian:debian_linux:node-handlebars, p-cpe:/a:redhat:enterprise_linux:cockpit-bridge, p-cpe:/a:redhat:enterprise_linux:cockpit-dashboard, p-cpe:/a:redhat:enterprise_linux:cockpit-doc, p-cpe:/a:redhat:enterprise_linux:cockpit-machines, p-cpe:/a:redhat:enterprise_linux:cockpit-packagekit, p-cpe:/a:redhat:enterprise_linux:cockpit-pcp, p-cpe:/a:redhat:enterprise_linux:cockpit-storaged, p-cpe:/a:redhat:enterprise_linux:cockpit-system, p-cpe:/a:redhat:enterprise_linux:cockpit-ws, p-cpe:/a:redhat:enterprise_linux:cockpit, p-cpe:/a:redhat:enterprise_linux:mozjs60-devel, p-cpe:/a:redhat:enterprise_linux:mozjs60

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/6/2026

Reference Information

CVE: CVE-2026-106446