XSS in @Angular Platform-Server
CVE-2026-69149
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- @Angular Platform-Server — versions < 20.3.27, >= 21.0.0-next.0, < 21.2.19, >= 22.0.0-next.0, < 22.0.7
- Angular — versions < 20.3.27, >= 21.0.0-next.0, < 21.2.19, >= 22.0.0-next.0, < 22.0.7
Weakness classification (CWE)
References
- github.com/angular/angular/security/advisories/GHSA-vpx6-8pjr-4g3v (Mitigation, Vendor Advisory)
- github.com/angular/angular/pull/69675 (Issue Tracking)
- github.com/angular/angular/pull/69714 (Issue Tracking)
- github.com/angular/angular/pull/69929 (Issue Tracking)
- github.com/angular/angular/pull/69930 (Issue Tracking)
- github.com/angular/domino/pull/32 (Issue Tracking)
- github.com/angular/domino/commit/f88e5aa49cf2804d7c2df22ef1640eb4ec43dd56 (Patch)
Frequently asked questions
- What is CVE-2026-69149?
- CVE-2026-69149 is a medium-severity vulnerability in @Angular Platform-Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-03.
- How severe is CVE-2026-69149?
- Medium severity. CVSS v3 base score is 6.1 out of 10.