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CVE-2026-10032

CVE-2026-10032 · Arbitrary JavaScript Execution via openUrl in @a2ui/web_core

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.1 · Medium · EPSS 0.1% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • @a2ui/web_core

    Versions
    • 0.9.0: Affected
    • 0.9.1-alpha.0: Affected
    • 0.9.1-alpha.1: Affected
    • 0.9.1-alpha.2: Affected
    • 0.9.1-alpha.3: Affected
    • 0.9.1-alpha.4: Affected
    • 0.9.1-alpha.5: Affected
    • 0.9.1: Affected
    • 0.9.2: Affected
    • 0.10.0: Affected
    • 0.10.1: Affected

    No fix published

  • @a2ui/web_core npm

    Affected ranges
    • SEMVER: ≥ 0.9.0, < 0.10.2

    Update to 0.10.2

Original sources

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