[deps]: Update @angular/compiler to v21.2.19 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@angular/compiler (source)	21.2.17 → 21.2.19

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Angular i18n: Cross-Site Scripting (XSS) via event-handler attributes

CVE-2026-69151 / GHSA-jj27-h5hq-8x99

More information

Details

A Cross-Site Scripting (XSS) vulnerability has been identified in the Angular compiler's internationalization (i18n) pipeline. Although Angular disallows binding to event-handler attributes such as onclick and onerror through standard attribute validation (validateAttribute() / validateProperty()), the i18n metadata collection path allowed these same attribute names to be marked for translation using i18n-on* attributes (e.g., i18n-onerror).

When exploited, a lower-trust translation file could replace a benign static handler such as onerror="void 0" with arbitrary executable JavaScript in the localized build.

The following example illustrates a vulnerable pattern:

<img src="foo.jpg" onerror="void 0" i18n-onerror />

Impact

When exploited, this vulnerability allows arbitrary JavaScript execution within the context of the vulnerable application's domain if an attacker can control or influence the translation files used during localization. This can lead to:

• Session Hijacking: Accessing session cookies, tokens, or sensitive user data.
• Unauthorized Actions: Performing actions on behalf of the authenticated user.

Patched Versions

• 22.0.1
• 21.2.19
• 20.3.27

Workarounds

Ensure that static event-handler attributes (e.g., onerror, onclick) are never marked for internationalization (i18n-on*) in application templates, and ensure translation files are sourced from trusted origins.

Severity

• CVSS Score: 7.6 / 10 (High)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References

• https://github.com/angular/angular/security/advisories/GHSA-jj27-h5hq-8x99
• https://github.com/angular/angular/pull/68821
• https://github.com/angular/angular/pull/69306
• https://github.com/angular/angular/commit/417a4071a776464d549509ed3aec121dbd2fda5e
• https://github.com/angular/angular/commit/6c41f5ca01c0ae045fc7d929b72853a11eb55865
• https://github.com/advisories/GHSA-jj27-h5hq-8x99

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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Release Notes

angular/angular (@​angular/compiler)

v21.2.19

Compare Source

compiler

Commit	Type	Description
e2660c3dee	fix	disallow i18n event attributes
7b884f585a	fix	restrict possible event handler check to property names longer than 2 characters

http

Commit	Type	Description
948a8d6831	fix	distinguish repeated transfer cache params
9949dccce1	fix	enable xsrf for root-provided HttpClient

platform-server

Commit	Type	Description
f34a93c946	fix	update domino to latest version

v21.2.18

Compare Source

compiler-cli

Commit	Type	Description
8d22cc953b	fix	update babel dependencies to latest v7

core

Commit	Type	Description
6bcce117fb	fix	avoid caching missing locale data
5a693bafcd	fix	reject dynamic script host elements

http

Commit	Type	Description
91df739b80	fix	prevent caching of responses with Set-Cookie headers

service-worker

Commit	Type	Description
1804f73bec	fix	preserve referrer in asset requests
e86c31bf26	fix	preserve referrer policy in asset requests

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⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

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The artifact failure details are included below:

File name: ui/package-lock.json

npm warn Unknown env config "store". This will stop working in the next major version of npm. See `npm help npmrc` for supported config options.
npm error code ERESOLVE
npm error ERESOLVE could not resolve
npm error
npm error While resolving: @angular/compiler-cli@21.2.17
npm error Found: @angular/compiler@21.2.19
npm error node_modules/@angular/compiler
npm error   @angular/compiler@"21.2.19" from the root project
npm error   peer @angular/compiler@"^21.0.0" from @angular/build@21.2.16
npm error   node_modules/@angular-devkit/build-angular/node_modules/@angular/build
npm error     @angular/build@"21.2.16" from @angular-devkit/build-angular@21.2.16
npm error     node_modules/@angular-devkit/build-angular
npm error       dev @angular-devkit/build-angular@"21.2.16" from the root project
npm error
npm error Could not resolve dependency:
npm error peer @angular/compiler@"21.2.17" from @angular/compiler-cli@21.2.17
npm error node_modules/@angular/compiler-cli
npm error   dev @angular/compiler-cli@"21.2.17" from the root project
npm error   peer @angular/compiler-cli@"^21.0.0" from @angular-devkit/build-angular@21.2.16
npm error   node_modules/@angular-devkit/build-angular
npm error     dev @angular-devkit/build-angular@"21.2.16" from the root project
npm error   2 more (@angular/build, @ngtools/webpack)
npm error
npm error Conflicting peer dependency: @angular/compiler@21.2.17
npm error node_modules/@angular/compiler
npm error   peer @angular/compiler@"21.2.17" from @angular/compiler-cli@21.2.17
npm error   node_modules/@angular/compiler-cli
npm error     dev @angular/compiler-cli@"21.2.17" from the root project
npm error     peer @angular/compiler-cli@"^21.0.0" from @angular-devkit/build-angular@21.2.16
npm error     node_modules/@angular-devkit/build-angular
npm error       dev @angular-devkit/build-angular@"21.2.16" from the root project
npm error     2 more (@angular/build, @ngtools/webpack)
npm error
npm error Fix the upstream dependency conflict, or retry this command with --force or --legacy-peer-deps to accept an incorrect (and potentially broken) dependency resolution.
npm error
npm error
npm error For a full report see:
npm error /runner/cache/others/npm/_logs/2026-08-26T10_47_23_602Z-eresolve-report.txt
npm error A complete log of this run can be found in: /runner/cache/others/npm/_logs/2026-08-26T10_47_23_602Z-debug-0.log