CVE-2026-10032

MediumCVSS 6.1/10Last modified Oct 23, 2026

Description

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

VendorProductVersions
Google@a2ui/web_core0.9.0; 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

References

Timeline

Published
Aug 4, 2026
Last modified
Oct 23, 2026
NVD status
Analyzed

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CVE-2026-10032: Medium severity, CVSS 6.1 | Vulnix