Linux Distros Unpatched Vulnerability : CVE-2026-27970

high Nessus Plugin ID 300236

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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.

- Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Versions prior to 21.2.0, 21.1.16, 20.3.17, and 19.2.19 have a cross-Site scripting vulnerability in the Angular internationalization (i18n) pipeline. In ICU messages (International Components for Unicode), HTML from translated content was not properly sanitized and could execute arbitrary JavaScript. Angular i18n typically involves three steps, extracting all messages from an application in the source language, sending the messages to be translated, and then merging their translations back into the final source code. Translations are frequently handled by contracts with specific partner companies, and involve sending the source messages to a separate contractor before receiving final translations for display to the end user. If the returned translations have malicious content, it could be rendered into the application and execute arbitrary JavaScript. When successfully exploited, this vulnerability allows for execution of attacker controlled JavaScript in the application origin. Depending on the nature of the application being exploited this could lead to credential exfiltration and/or page vandalism. Several preconditions apply to the attack. The attacker must compromise the translation file (xliff, xtb, etc.). Unlike most XSS vulnerabilities, this issue is not exploitable by arbitrary users. An attacker must first compromise an application's translation file before they can escalate privileges into the Angular application client. The victim application must use Angular i18n, use one or more ICU messages, render an ICU message, and not defend against XSS via a safe content security policy. Versions 21.2.0, 21.1.6, 20.3.17, and 19.2.19 patch the issue. Until the patch is applied, developers should consider reviewing and verifying translated content received from untrusted third parties before incorporating it in an Angular application, enabling strict CSP controls to block unauthorized JavaScript from executing on the page, and enabling Trusted Types to enforce proper HTML sanitization. (CVE-2026-27970)

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: 300236

File Name: unpatched_CVE_2026_27970.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 3/2/2026

Updated: 3/3/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 3

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

CVSS Score Source: CVE-2026-27970

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

CVSS v4

Risk Factor: High

Base Score: 7.6

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:14.0, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:thunderbird, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:firefox-x11, p-cpe:/a:centos:centos:intel-cmt-cat, p-cpe:/a:redhat:enterprise_linux:thunderbird, p-cpe:/a:redhat:enterprise_linux:librbd1, cpe:/o:centos:centos:7, p-cpe:/a:debian:debian_linux:angular.js, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:centos:centos:librados-devel, p-cpe:/a:redhat:enterprise_linux:librados2, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:librados2, p-cpe:/a:centos:centos:librbd-devel, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:intel-cmt-cat, p-cpe:/a:redhat:enterprise_linux:libradospp-devel, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:redhat:enterprise_linux:firefox, p-cpe:/a:centos:centos:libradospp-devel, p-cpe:/a:redhat:enterprise_linux:librbd-devel, p-cpe:/a:redhat:enterprise_linux:librados-devel, p-cpe:/a:redhat:enterprise_linux:firefox-x11, p-cpe:/a:centos:centos:intel-cmt-cat-devel, p-cpe:/a:redhat:enterprise_linux:intel-cmt-cat-devel, p-cpe:/a:centos:centos:librbd1, p-cpe:/a:centos:centos:firefox, cpe:/o:debian:debian_linux:12.0

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: 2/26/2026

Reference Information

CVE: CVE-2026-27970

Detections

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