---
id: CVE-2026-88060
title: >-
  Angular: SSR XSS via Unescaped <template> Content Across DocumentFragment
  Boundaries in Fallback Raw-Content Elements
summary: >-
  Angular is a development platform for building mobile and desktop web
  applications using TypeScript/JavaScript and other languages. Prior to
  20.3.30, 21.2.22, and 22.1.4, Angular server-side rendering (SSR) in
  @angular/platform-server se…
severity: high
cvss: 8.6
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-79
  - CWE-116
vendor: angular
product: angular
affected:
  - angular <= 19.2.25
  - 'angular >= 20.0.0, < 20.3.30'
  - 'angular >= 21.0.0, < 21.2.22'
  - 'angular >= 22.0.0, < 22.1.4'
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-10T19:19:47.937061Z'
exploitAvailable: true
published: '2026-09-10'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T19:20:56.297Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-88060'
references:
  - url: 'https://github.com/angular/angular/security/advisories/GHSA-v3p8-whq6-r5jg'
    label: 'https://github.com/angular/angular/security/advisories/GHSA-v3p8-whq6-r5jg'
  - url: >-
      https://github.com/angular/angular/commit/73d8bbd27cb46495426d4132975a1355b47ad915
    label: >-
      https://github.com/angular/angular/commit/73d8bbd27cb46495426d4132975a1355b47ad915
  - url: >-
      https://github.com/angular/angular/commit/89b20568dfaee1ec8e0b3bcf1872acdddd2f4fef
    label: >-
      https://github.com/angular/angular/commit/89b20568dfaee1ec8e0b3bcf1872acdddd2f4fef
  - url: >-
      https://github.com/angular/angular/commit/ba3bc47b20b3d12f5eb141ec9c651373ae4d15e8
    label: >-
      https://github.com/angular/angular/commit/ba3bc47b20b3d12f5eb141ec9c651373ae4d15e8
  - url: >-
      https://github.com/angular/domino/commit/04f987dc08ff3736b427f50941adf1722458528f
    label: >-
      https://github.com/angular/domino/commit/04f987dc08ff3736b427f50941adf1722458528f
  - url: 'https://github.com/angular/angular/releases/tag/v20.3.30'
    label: 'https://github.com/angular/angular/releases/tag/v20.3.30'
  - url: 'https://github.com/angular/angular/releases/tag/v21.2.22'
    label: 'https://github.com/angular/angular/releases/tag/v21.2.22'
  - url: 'https://github.com/angular/angular/releases/tag/v22.1.4'
    label: 'https://github.com/angular/angular/releases/tag/v22.1.4'
tags:
  - cve.org
  - exploit-available
epss: 0.00759
epssPercentile: 0.53322
ingestedAt: '2026-09-11T16:45:48.024Z'
---

## Overview

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular server-side rendering (SSR) in @angular/platform-server serializes untrusted input inside template content nested in fallback raw-content elements such as noscript, iframe, noembed, and noframes. The Domino serializer's fallbackRawContentTags traversal stopped at the DocumentFragment used by template.content, so matching closing tags in xmp, style, script, comments, or text nodes were not escaped. Standard interpolation with comments or text nodes is reachable without relaxed schemas; literal xmp or style requires CUSTOM_ELEMENTS_SCHEMA or NO_ERRORS_SCHEMA, while Renderer2 imperative DOM construction is unconditionally affected. When HTML5 RAWTEXT browser parsing encounters the unescaped closing tag, it exits the fallback container and interprets trailing markup as active DOM elements, enabling arbitrary JavaScript execution. This issue is fixed in versions 20.3.30, 21.2.22, and 22.1.4.

## Affected

- `angular <= 19.2.25`
- `angular >= 20.0.0, < 20.3.30`
- `angular >= 21.0.0, < 21.2.22`
- `angular >= 22.0.0, < 22.1.4`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.