CVE-2026-50557

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15, 20.3.22 and 19.2.22, an issue in the @angular/compiler and @angular/core packages allows bypassing element and attribute sanitization/validation through specific namespace workarounds. Specifically, namespaced script elements (e.g., <svg:script> or <:svg:script>) were not properly identified as script elements by the Angular template preparser, allowing them to pass through template compilation without being stripped. Furthermore, security context schema mappings for element attributes did not consistently handle attributes within namespaced elements (like SVG and MathML), opening up gaps where malicious namespaced attributes could bypass runtime and compile-time sanitizers. Combined, these flaws enable an attacker who can inject or supply a template/tag structure with custom namespaces to bypass Angular's script-stripping logic and attribute sanitizers, leading to client-side Cross-Site Scripting (XSS). This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22 and 19.2.22.

CVSS

No CVSS.

References

Link	Resource
https://github.com/angular/angular/pull/68689
https://github.com/angular/angular/pull/68868
https://github.com/angular/angular/security/advisories/GHSA-f3m7-gqxr-g87x

Configurations

No configuration.

History

22 Jun 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-22 16:16

Updated : 2026-06-22 19:17

NVD link : CVE-2026-50557

Mitre link : CVE-2026-50557

CVE.ORG link : CVE-2026-50557

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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