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      <title>CVE-2026-10032 — Arbitrary JavaScript Execution via openUrl in @a2ui/web_core</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-10032</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Google @a2ui/web_core&lt;/p&gt;
&lt;p&gt;The openUrl function in @a2ui/web_core passes an agent-controlled URL directly to window.open() without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component&amp;#39;s functionCall action. When the user clicks the rendered button, arbitrary JavaScript executes in the victim application&amp;#39;s browser origin, constituting a stored/reflected XSS with Critical severity. No non-default configuration is required; the Basic Catalog is enabled by default.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Google @a2ui/web_core&lt;/p&gt;
&lt;p&gt;The openUrl function in @a2ui/web_core passes an agent-controlled URL directly to window.open() without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component&amp;#39;s functionCall action. When the user clicks the rendered button, arbitrary JavaScript executes in the victim application&amp;#39;s browser origin, constituting a stored/reflected XSS with Critical severity. No non-default configuration is required; the Basic Catalog is enabled by default.&lt;/p&gt;</content:encoded>
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