CVE-2026-10032
Arbitrary JavaScript Execution via openUrl in @a2ui/web_core
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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's functionCall action. When the user clicks the rendered button, arbitrary JavaScript executes in the victim application's browser origin, constituting a stored/reflected XSS with Critical severity. No non-default configuration is required; the Basic Catalog is enabled by default.
| CWE | CWE-79 |
| Vendor | |
| Product | @a2ui/web_core |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 4, 2026 |
Stay Ahead of the Next One
Get instant alerts for google @a2ui/web_core
Be the first to know when new unknown vulnerabilities affecting google @a2ui/web_core are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Google / @a2ui/web_core
0.9.0 0.9.1-alpha.0 0.9.1-alpha.1 0.9.1-alpha.2 0.9.1-alpha.3 0.9.1-alpha.4 0.9.1-alpha.5 0.9.1 0.9.2 0.10.0 0.10.1