{"id":"CVE-2026-10032","revision":"c14d1e57e284450cbf5e47de49fdbeb5","records":[{"revision":"c14d1e57e284450cbf5e47de49fdbeb5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-10032","aliases":[],"title":"Arbitrary JavaScript Execution via openUrl in @a2ui/web_core","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.","state":0,"publishedAt":"2026-08-04T15:36:45.199+00:00","modifiedAt":"2026-08-04T17:43:20.898+00:00","affected":[{"ecosystem":"Vendor product","name":"@a2ui/web_core","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Google\",\n                    \"product\": \"@a2ui/web_core\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.9.0\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.9.1-alpha.0\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.9.1-alpha.1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.9.1-alpha.2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.9.1-alpha.3\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.9.1-alpha.4\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.9.1-alpha.5\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.9.1\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.9.2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.10.0\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.10.1\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U","score":6.1,"severity":"MEDIUM"}],"references":["https://github.com/a2ui-project/a2ui/security/advisories/GHSA-72qq-p3r5-f7wq"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-10032","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-10032","identifiers":["CVE-2026-10032"]},"retained":false,"historicalAffected":[]}],"coverage":[]}