Angular 12 Release Notes

Angular

v12.3.9 - August 20, 2026

Notes

Full package name(s) and version(s):
- @neverendingsupport/angular-animations@12.2.17-angular-12.3.9
- @neverendingsupport/angular-bazel@12.2.17-angular-12.3.9
- @neverendingsupport/angular-common@12.2.17-angular-12.3.9
- @neverendingsupport/angular-compiler@12.2.17-angular-12.3.9
- @neverendingsupport/angular-compiler-cli@12.2.17-angular-12.3.9
- @neverendingsupport/angular-core@12.2.17-angular-12.3.9
- @neverendingsupport/angular-elements@12.2.17-angular-12.3.9
- @neverendingsupport/angular-forms@12.2.17-angular-12.3.9
- @neverendingsupport/angular-language-service@12.2.17-angular-12.3.9
- @neverendingsupport/angular-localize@12.2.17-angular-12.3.9
- @neverendingsupport/angular-platform-browser@12.2.17-angular-12.3.9
- @neverendingsupport/angular-platform-browser-dynamic@12.2.17-angular-12.3.9
- @neverendingsupport/angular-platform-server@12.2.17-angular-12.3.9
- @neverendingsupport/angular-router@12.2.17-angular-12.3.9
- @neverendingsupport/angular-service-worker@12.2.17-angular-12.3.9
- @neverendingsupport/angular-upgrade@12.2.17-angular-12.3.9

Security Fixes

common:
- Add upper bounds for digitsInfo to prevent roundNumber from allocating a large array.
  - This fixes a high-severity Denial of Service (DoS) vulnerability (CVE-2026-50171).
- Limit date format string length to 256 characters.
  - This fixes a high-severity Denial of Service (DoS) vulnerability (CVE-2026-54268).
compiler:
- Disallow i18n event attributes.
  - This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-69151).
- Restrict possible event handler check to property names longer than 2 characters.
  - This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-69151).
- Reject i18n translation of event-handler attributes on the View Engine path.
  - This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-69151).
platofrm-browser:
- Harden TransferState restoration against DOM clobbering.
  - This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-54267).
platform-server:
- Escape matching closing tags correctly when raw-text content contains astral characters.
  - This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-50555).
- Escape <noscript> text content when serializing server-rendered output.
  - This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-50556).
- Escape text in fallback raw-content elements (<iframe>, <noembed>, <noframes>, <noscript>) when serializing server-rendered output.
  - This fixes a high-severity Cross-Site Scripting (XSS) vulnerability (CVE-2026-69149).

v12.3.8 - July 23, 2026

Notes

Full package name(s) and version(s):
- @neverendingsupport/angular-animations@12.2.17-angular-12.3.8
- @neverendingsupport/angular-bazel@12.2.17-angular-12.3.8
- @neverendingsupport/angular-common@12.2.17-angular-12.3.8
- @neverendingsupport/angular-compiler@12.2.17-angular-12.3.8
- @neverendingsupport/angular-compiler-cli@12.2.17-angular-12.3.8
- @neverendingsupport/angular-core@12.2.17-angular-12.3.8
- @neverendingsupport/angular-elements@12.2.17-angular-12.3.8
- @neverendingsupport/angular-forms@12.2.17-angular-12.3.8
- @neverendingsupport/angular-language-service@12.2.17-angular-12.3.8
- @neverendingsupport/angular-localize@12.2.17-angular-12.3.8
- @neverendingsupport/angular-platform-browser@12.2.17-angular-12.3.8
- @neverendingsupport/angular-platform-browser-dynamic@12.2.17-angular-12.3.8
- @neverendingsupport/angular-platform-server@12.2.17-angular-12.3.8
- @neverendingsupport/angular-router@12.2.17-angular-12.3.8
- @neverendingsupport/angular-service-worker@12.2.17-angular-12.3.8
- @neverendingsupport/angular-upgrade@12.2.17-angular-12.3.8

Security Fixes

platform-server: Reject untrusted request URLs that bypass the allowedHosts allowlist.
- This fixes a high-severity Server-Side Request Forgery (SSRF) vulnerability (CVE-2026-50168).
service-worker:
- Preserve redirect policy on reconstructed asset requests.
  - This fixes a medium-severity Information Exposure vulnerability (CVE-2026-50169).
- Preserve explicit credentials: 'omit' in asset requests.
  - This fixes a medium-severity Information Exposure vulnerability (CVE-2026-50184).
- Preserve HTTP cache mode in asset group requests.
  - This fixes a medium-severity Information Exposure vulnerability (CVE-2026-50184).

v12.3.7 - June 18, 2026

Notes

Full package name(s) and version(s):
- @neverendingsupport/angular-animations@12.2.17-angular-12.3.7
- @neverendingsupport/angular-bazel@12.2.17-angular-12.3.7
- @neverendingsupport/angular-common@12.2.17-angular-12.3.7
- @neverendingsupport/angular-compiler@12.2.17-angular-12.3.7
- @neverendingsupport/angular-compiler-cli@12.2.17-angular-12.3.7
- @neverendingsupport/angular-core@12.2.17-angular-12.3.7
- @neverendingsupport/angular-elements@12.2.17-angular-12.3.7
- @neverendingsupport/angular-forms@12.2.17-angular-12.3.7
- @neverendingsupport/angular-language-service@12.2.17-angular-12.3.7
- @neverendingsupport/angular-localize@12.2.17-angular-12.3.7
- @neverendingsupport/angular-platform-browser@12.2.17-angular-12.3.7
- @neverendingsupport/angular-platform-browser-dynamic@12.2.17-angular-12.3.7
- @neverendingsupport/angular-platform-server@12.2.17-angular-12.3.7
- @neverendingsupport/angular-router@12.2.17-angular-12.3.7
- @neverendingsupport/angular-service-worker@12.2.17-angular-12.3.7
- @neverendingsupport/angular-upgrade@12.2.17-angular-12.3.7

Security Fixes

core:
- Validate security-sensitive attributes in i18n bindings.
- Disallow event attribute bindings in host bindings unconditionally.
platform-server: Add allowedHosts option to renderModule and renderModuleFactory.
- This fixes a high-severity Server-Side Request Forgery (SSRF) vulnerability (CVE-2026-46417).

Breaking Changes

platform-server

Add allowedHosts option to renderModule and renderModuleFactory:
When url is an absolute URL, its hostname is now validated against the new allowedHosts option, mitigating Server-Side Request Forgery (SSRF) and Host Header Injection attacks. This validation applies to both rendering entry points (renderModule and renderModuleFactory). Because allowedHosts defaults to an empty allow-list, any absolute URL now throws at bootstrap unless allowedHosts is configured. Relative URLs (e.g. /path) are unaffected.
To pass validation, configure allowedHosts with the hostnames you serve (exact hostnames, *.example.com wildcards, or * to allow all).

v12.3.6 - March 10, 2026

Notes

Full package name(s) and version(s):
- @neverendingsupport/angular-animations@12.2.17-angular-12.3.6
- @neverendingsupport/angular-bazel@12.2.17-angular-12.3.6
- @neverendingsupport/angular-common@12.2.17-angular-12.3.6
- @neverendingsupport/angular-compiler@12.2.17-angular-12.3.6
- @neverendingsupport/angular-compiler-cli@12.2.17-angular-12.3.6
- @neverendingsupport/angular-core@12.2.17-angular-12.3.6
- @neverendingsupport/angular-elements@12.2.17-angular-12.3.6
- @neverendingsupport/angular-forms@12.2.17-angular-12.3.6
- @neverendingsupport/angular-language-service@12.2.17-angular-12.3.6
- @neverendingsupport/angular-localize@12.2.17-angular-12.3.6
- @neverendingsupport/angular-platform-browser@12.2.17-angular-12.3.6
- @neverendingsupport/angular-platform-browser-dynamic@12.2.17-angular-12.3.6
- @neverendingsupport/angular-platform-server@12.2.17-angular-12.3.6
- @neverendingsupport/angular-router@12.2.17-angular-12.3.6
- @neverendingsupport/angular-service-worker@12.2.17-angular-12.3.6
- @neverendingsupport/angular-upgrade@12.2.17-angular-12.3.6

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.

v12.3.5 - February 24, 2026

Notes

Full package name(s) and version(s):
- @neverendingsupport/angular-animations@12.2.17-angular-12.3.5
- @neverendingsupport/angular-bazel@12.2.17-angular-12.3.5
- @neverendingsupport/angular-common@12.2.17-angular-12.3.5
- @neverendingsupport/angular-compiler@12.2.17-angular-12.3.5
- @neverendingsupport/angular-compiler-cli@12.2.17-angular-12.3.5
- @neverendingsupport/angular-core@12.2.17-angular-12.3.5
- @neverendingsupport/angular-elements@12.2.17-angular-12.3.5
- @neverendingsupport/angular-forms@12.2.17-angular-12.3.5
- @neverendingsupport/angular-language-service@12.2.17-angular-12.3.5
- @neverendingsupport/angular-localize@12.2.17-angular-12.3.5
- @neverendingsupport/angular-platform-browser@12.2.17-angular-12.3.5
- @neverendingsupport/angular-platform-browser-dynamic@12.2.17-angular-12.3.5
- @neverendingsupport/angular-platform-server@12.2.17-angular-12.3.5
- @neverendingsupport/angular-router@12.2.17-angular-12.3.5
- @neverendingsupport/angular-service-worker@12.2.17-angular-12.3.5
- @neverendingsupport/angular-upgrade@12.2.17-angular-12.3.5

Security Fixes

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

v12.3.4 - December 18, 2025

Notes

Full package name(s) and version(s):
- @neverendingsupport/angular-animations@12.2.17-angular-12.3.4
- @neverendingsupport/angular-bazel@12.2.17-angular-12.3.4
- @neverendingsupport/angular-common@12.2.17-angular-12.3.4
- @neverendingsupport/angular-compiler@12.2.17-angular-12.3.4
- @neverendingsupport/angular-compiler-cli@12.2.17-angular-12.3.4
- @neverendingsupport/angular-core@12.2.17-angular-12.3.4
- @neverendingsupport/angular-elements@12.2.17-angular-12.3.4
- @neverendingsupport/angular-forms@12.2.17-angular-12.3.4
- @neverendingsupport/angular-language-service@12.2.17-angular-12.3.4
- @neverendingsupport/angular-localize@12.2.17-angular-12.3.4
- @neverendingsupport/angular-platform-browser@12.2.17-angular-12.3.4
- @neverendingsupport/angular-platform-browser-dynamic@12.2.17-angular-12.3.4
- @neverendingsupport/angular-platform-server@12.2.17-angular-12.3.4
- @neverendingsupport/angular-router@12.2.17-angular-12.3.4
- @neverendingsupport/angular-service-worker@12.2.17-angular-12.3.4
- @neverendingsupport/angular-upgrade@12.2.17-angular-12.3.4

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).

v12.3.3 - December 4, 2025

Notes

Full package name(s) and version(s):
- @neverendingsupport/angular-animations@12.2.17-angular-12.3.3
- @neverendingsupport/angular-bazel@12.2.17-angular-12.3.3
- @neverendingsupport/angular-common@12.2.17-angular-12.3.3
- @neverendingsupport/angular-compiler@12.2.17-angular-12.3.3
- @neverendingsupport/angular-compiler-cli@12.2.17-angular-12.3.3
- @neverendingsupport/angular-core@12.2.17-angular-12.3.3
- @neverendingsupport/angular-elements@12.2.17-angular-12.3.3
- @neverendingsupport/angular-forms@12.2.17-angular-12.3.3
- @neverendingsupport/angular-language-service@12.2.17-angular-12.3.3
- @neverendingsupport/angular-localize@12.2.17-angular-12.3.3
- @neverendingsupport/angular-platform-browser@12.2.17-angular-12.3.3
- @neverendingsupport/angular-platform-browser-dynamic@12.2.17-angular-12.3.3
- @neverendingsupport/angular-platform-server@12.2.17-angular-12.3.3
- @neverendingsupport/angular-router@12.2.17-angular-12.3.3
- @neverendingsupport/angular-service-worker@12.2.17-angular-12.3.3
- @neverendingsupport/angular-upgrade@12.2.17-angular-12.3.3

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).

v12.3.2 - June 16, 2025

Notes

This release contains no functional changes from NES v12.3.1.
This release implements a new package naming scheme for the Angular packages. More information about the change can be found in the NES Decoupled Namespace Specification.
Full package name(s) and version(s):
- @neverendingsupport/angular-animations@12.2.17-angular-12.3.2
- @neverendingsupport/angular-bazel@12.2.17-angular-12.3.2
- @neverendingsupport/angular-common@12.2.17-angular-12.3.2
- @neverendingsupport/angular-compiler@12.2.17-angular-12.3.2
- @neverendingsupport/angular-compiler-cli@12.2.17-angular-12.3.2
- @neverendingsupport/angular-core@12.2.17-angular-12.3.2
- @neverendingsupport/angular-elements@12.2.17-angular-12.3.2
- @neverendingsupport/angular-forms@12.2.17-angular-12.3.2
- @neverendingsupport/angular-language-service@12.2.17-angular-12.3.2
- @neverendingsupport/angular-localize@12.2.17-angular-12.3.2
- @neverendingsupport/angular-platform-browser@12.2.17-angular-12.3.2
- @neverendingsupport/angular-platform-browser-dynamic@12.2.17-angular-12.3.2
- @neverendingsupport/angular-platform-server@12.2.17-angular-12.3.2
- @neverendingsupport/angular-router@12.2.17-angular-12.3.2
- @neverendingsupport/angular-service-worker@12.2.17-angular-12.3.2
- @neverendingsupport/angular-upgrade@12.2.17-angular-12.3.2

v12.3.1 - January 30, 2025

Notes

Full Version: 12.2.17-{PACKAGE_NAME}-12.3.1

Security Fixes

upgrade: Address Trusted Types violations in @angular/upgrade.

v12.2.20 - January 30, 2025

Notes

This release contains no functional changes from NES v12.2.19.
This release contains only metadata fixes and improvements: Updated peer dependency versions.
Full Version: 12.2.17-{PACKAGE_NAME}-12.2.20

v12.2.19 - January 30, 2025

Notes

This release contains no functional changes from NES v12.2.18.
This release contains only metadata fixes and improvements: Updated peer dependency versions.
Full Version: 12.2.19-{PACKAGE_NAME}

v12.2.18 - February 8, 2024

Notes

Full Version: 12.2.18-{PACKAGE_NAME}

Security Fixes

compiler: Do not unquote CSS values.
core:
- Do not use Function constructors in development mode to avoid CSP violations.
- Set style property value to empty string instead of an invalid value.

Angular CLI

12.2.22 (NES) - September 2025

Notes

Full package names and versions
- @neverendingsupport/angular-cli@12.2.18-angular-cli-12.2.22
- @neverendingsupport/angular-pwa@12.2.18-angular-cli-12.2.22
- @neverendingsupport/angular-devkit-architect@0.1202.18-angular-cli-12.2.22
- @neverendingsupport/angular-devkit-architect-cli@0.1202.18-angular-cli-12.2.22
- @neverendingsupport/angular-devkit-build-angular@12.2.18-angular-cli-12.2.22
- @neverendingsupport/angular-devkit-build-optimizer@0.1202.18-angular-cli-12.2.22
- @neverendingsupport/angular-devkit-build-webpack@0.1202.18-angular-cli-12.2.22
- @neverendingsupport/angular-devkit-core@12.2.18-angular-cli-12.2.22
- @neverendingsupport/angular-devkit-schematics@12.2.18-angular-cli-12.2.22
- @neverendingsupport/angular-devkit-schematics-cli@12.2.18-angular-cli-12.2.22
- @neverendingsupport/ngtools-webpack@12.2.18-angular-cli-12.2.22

Bug Fixes

Fixed build issues: updated peer dependency version numbers

12.2.21 (NES) - June 5, 2025

Notes

This release contains no functional changes from 12.2.20.
Full package names and versions
- @neverendingsupport/angular-cli@12.2.18-angular-cli-12.2.21
- @neverendingsupport/angular-pwa@12.2.18-angular-cli-12.2.21
- @neverendingsupport/angular-devkit-architect@0.1202.18-angular-cli-12.2.21
- @neverendingsupport/angular-devkit-architect-cli@0.1202.18-angular-cli-12.2.21
- @neverendingsupport/angular-devkit-build-angular@12.2.18-angular-cli-12.2.21
- @neverendingsupport/angular-devkit-build-optimizer@0.1202.18-angular-cli-12.2.21
- @neverendingsupport/angular-devkit-build-webpack@0.1202.18-angular-cli-12.2.21
- @neverendingsupport/angular-devkit-core@12.2.18-angular-cli-12.2.21
- @neverendingsupport/angular-devkit-schematics@12.2.18-angular-cli-12.2.21
- @neverendingsupport/angular-devkit-schematics-cli@12.2.18-angular-cli-12.2.21
- @neverendingsupport/ngtools-webpack@12.2.18-angular-cli-12.2.21