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Angular 17

Comprehensive release notes and changelog for Angular 17, including security patches, bug fixes, and feature updates across all supported versions.

10 Patched Vulnerabilities
VEX Statements

Angular

v17.3.21 - April 30, 2026

Notes

Security Fixes

  • platform-server: Prevent SSRF bypasses via protocol-relative and backslash URLs.
    • This fixes a high-severity Server-Side Request Forgery (SSRF) vulnerability (CVE-2026-41423).

v17.3.20 - March 30, 2026

Notes

Security Fixes

  • core: Sanitize translated attribute bindings with interpolations.
    • This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-32635).
  • compiler: Disallow translations of src attributes in iframes.
    • This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-32635).

v17.3.19 - March 9, 2026

Notes

Security Fixes

  • core: Block creation of sensitive URI attributes from ICU messages.
    • This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-27970).

Breaking Changes

core
  • Block creation of sensitive URI attributes from ICU messages:
    Translators can no longer introduce URI attributes—attribute values are blocked to avoid malicious links, and sanitization now relies on an allowlist of known attributes (still sanitizing URI ones). Translated ICU content keeps only recognized attributes and drops everything else.

v17.3.18 - January 8, 2026

Notes

Security Fixes

  • core: Sanitize sensitive attributes on SVG script elements.
    • This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-22610).

v17.3.17 - December 11, 2025

Notes

Security Fixes

  • compiler: Prevent stored XSS via SVG animation attributeName and MathML/SVG URLs.
    • This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2025-66412).

v17.3.16 - December 2, 2025

Notes

Security Fixes

  • common: Prevent Cross-Site Request Forgery (XSRF) token leakage to protocol-relative URLs.
    • This fixes a high-severity Information Exposure vulnerability (CVE-2025-66035).

v17.3.15 - September 30, 2025

Notes

Security Fixes

  • core: Introduce BootstrapContext for improved server bootstrapping.
    • This fixes a high-severity Information Exposure vulnerability (CVE-2025-59052).

Breaking Changes

core
  • Introduce BootstrapContext for improved server bootstrapping:
    The server-side bootstrapping process has been changed to eliminate the reliance on a global platform injector and avoid potential exposure of sensitive data from other sessions.
    In addition, getPlatform() and destroyPlatform() will now return null and be a no-op respectively, when running in a server environment.
    Before:
    const bootstrap = () => bootstrapApplication(AppComponent, config);

    After:
    const bootstrap = (context: BootstrapContext) =>
  bootstrapApplication(AppComponent, config, context);

v17.3.14 - June 16, 2025

Notes

v17.3.13 - February 27, 2025

Notes

  • This release contains no functional change from the OSS Angular v17.3.12.
  • This release mainlines OSS v17.3.12 into NES v17.3.13.

Angular CLI

v17.3.22 - April 20, 2026

Notes

v17.3.21 - April 17, 2026

Notes

Security Fixes

  • ssr: Validate host headers to prevent header-based SSRF.
    • This fixes a critical-severity Server-Side Request Forgery (SSRF) vulnerability (CVE-2026-27739).

17.3.20 (NES) - October, 2025

Notes

Breaking Changes

@angular/ssr
  • The server-side bootstrapping process has been changed to eliminate the reliance on a global platform injector.
    • This fixes a high-severity Information Exposure vulnerability (CVE-2025-59052).

    Before:
    const bootstrap = () => bootstrapApplication(AppComponent, config);

    After:
    const bootstrap = (context: BootstrapContext) =>
  bootstrapApplication(AppComponent, config, context);

17.3.19 (NES) - September, 2025

Notes

Bug Fixes

  • Fixed build issues: updated peer dependency version numbers

17.3.18 (NES) - June, 2025

Notes

17.3.13 (NES) - February, 2025

Notes

  • This is the initial release of the NES Angular CLI 17.3.x series.