AIKIDO-2026-10947
@angular/compiler-cli is vulnerable to Cross-site Scripting (XSS)
59
Medium Risk
This Affects:
@angular/compiler-cliTL;DR
Angular template type checking did not consistently apply DOM security schema validation to bound on* attributes in templates and host bindings. Applications could compile bindings to inline event-handler attributes that become XSS vectors when bound data is attacker-influenced. The fix surfaces compile-time errors for disallowed on* attribute and host bindings.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
@angular/compiler-cli is vulnerable to Cross-site Scripting (XSS) in versions 21.0.0 - 21.2.12, 20.0.0 - 20.3.19 and 19.0.0 - 19.2.21.
How to fix this
Upgrade the @angular/compiler-cli and/or the @angular/compiler library to the patch version.
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