CVE-2026-69149 Angular SSR: Missing Fallback Raw-Content Serialization Escaping leads to Cross-Site Scripting (XSS)
An XSS vulnerability in Angular SSR allows attackers to execute arbitrary scripts via unescaped raw-content elements during server-side rendering.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-69149?
CVE-2026-69149 is a high-severity cross-site scripting vulnerability in @angular angular, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-69149?
8 open source packages ship an affected version, including @angular/platform-server. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@angular/platform-server npm | All versions to 19.2.25 | None |
@angular/platform-server npm | All versions to 19.2.25 | None |
@angular/platform-server npm | From 20.0.0-next.0 | 20.3.27 |
@angular/platform-server npm | From 20.0.0-next.0 | 20.3.27 |
@angular/platform-server npm | From 21.0.0-next.0 | 21.2.19 |
@angular/platform-server npm | From 21.0.0-next.0 | 21.2.19 |
2 more packages
@angular/platform-server npm | From 22.0.0-next.0 | 22.0.7 |
@angular/platform-server npm | From 22.0.0-next.0 | 22.0.7 |
Products include Angular Angular.
How do I fix CVE-2026-69149?
Upgrade @angular/platform-server to a fixed version for your release line: 20.3.27, 21.2.19 or 22.0.7.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-69149 being exploited?
There is no known exploitation of CVE-2026-69149 in the wild and no public exploit code.
Other vulnerabilities in @angular angular
- CVE-2026-68945 Angular: Cache-Key Ambiguity in HttpTransferCache Leading to Cross-Request Response Reuse and State Poisoning
- CVE-2026-46417 Angular: SSRF via Hostname Hijacking in @angular/platform-server
- CVE-2026-50168 Angular: URL Parser Differential in @angular/platform-server leading to SSRF Allowlist Bypass
- CVE-2026-54266 Angular: Weak 32-Bit Cache Key Hashing in `HttpTransferCache` Leading to Cross-Request Data Leakage and State Poisoning
- CVE-2026-41423 Angular: SSRF via protocol-relative and backslash URLs in Angular Platform-Server
Sources
Also known as DEBIAN-CVE-2026-69149, GHSA-vpx6-8pjr-4g3v, UBUNTU-CVE-2026-69149.