Angular automatically sanitizes untrusted values bound to security-sensitive DOM sinks (such as href, src, action, xlink:href, and data) to protect against Cross-Site Scripting (XSS).

Prior to the fix, the Angular compiler determined the SecurityContext for directive host bindings (host: {'[attr.href]': 'value'} or @HostBinding('attr.href')) based solely on the declaring directive or component selector at compile time, rather than the concrete host element that the directive was applied to.

When a directive with a security-sensitive host binding was applied to a different concrete host element—such as through: - hostDirectives composition, - Class inheritance of host bindings, - Dynamic component instantiation (createComponent with custom hostElement or dynamic directives), - Elements with SVG/MathML namespaces (e.g. <svg:a>, <math>), or - Elements using tag-neutral selectors (e.g. :not(...)),

the compiler either failed to associate a sanitizer with the host binding or attached an incorrect security context. As a result, untrusted inputs (e.g. javascript:... URLs) bound via the host binding would be written to the DOM attribute without passing through Angular's built-in sanitizer.

Impact An attacker capable of controlling the value bound to an affected directive host binding could execute arbitrary JavaScript in the user's browser context (Cross-Site Scripting).

Patches This issue has been resolved in versions: - 22.1.0 - 21.2.20 - 20.3.28

Workarounds Ensure that any user-controlled values assigned to properties bound via directive host bindings are explicitly sanitized using DomSanitizer.sanitize(SecurityContext.URL, ...) before assignment, or restrict the input to validated safe URL schemes (e.g. http://, https://).

Unauthenticated Cross Site Request Forgery (CSRF) in Site Kit by Google <= 1.186.0 versions.

Incorrect authorization in Isolated in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

Missing authorization in FileSystem in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

Incorrect authorization in Safebrowsing in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Low)

Missing authorization in WebView in Google Chrome on on Android prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to potentially bypass system access restrictions via crafted network traffic. (Chromium security severity: Low)

Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. (Chromium security severity: Medium)

Incorrect authorization in WebAppInstalls in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

Incorrect authorization in SiteIsolation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

Improper input validation in Passwords in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially leak sensitive information via crafted network traffic. (Chromium security severity: Medium)

Incorrect authorization in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions via a crafted Chrome extension. (Chromium security severity: Medium)

Chromium: CVE-2026-84330 UI misrepresentation in FullScreen

Missing authorization in FileSystem in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

Incorrect authorization in Omnibox in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. (Chromium security severity: Medium)

Incorrect authorization in DeviceBoundSessionCredentials in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via crafted network traffic. (Chromium security severity: Medium)

Improper input validation in Safebrowsing in Google Chrome on on Android prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

Type confusion in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Missing authorization in Omnibox in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions into a privileged page via a crafted HTML page. (Chromium security severity: Medium)

Missing authorization in ControlledFrame in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

Improper authentication in ActivityTaskManagerService prior to SMR Sep-2026 Release 1 allows local privileged attackers to launch arbitrary activity.

Incorrect authorization in Web Authentication in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Low)

Missing authorization in Core in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Low)

Missing authorization in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Low)

Incomplete cleanup in Browser in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Medium)

Incorrect authorization in FileAPI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

Inappropriate implementation in Downloads in Google Chrome on on Android prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

UI misrepresentation in Downloads in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to spoof UI elements via a crafted HTML page. (Chromium security severity: Medium)

UI misrepresentation in Passwords in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to spoof UI elements via a crafted HTML page. (Chromium security severity: Medium)

Uninitialized resource in Codecs in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

UI misrepresentation in Browser in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to spoof UI elements via a crafted HTML page. (Chromium security severity: Medium)