{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-10032","assignerOrgId":"14ed7db2-1595-443d-9d34-6215bf890778","state":"PUBLISHED","assignerShortName":"Google","dateReserved":"2026-05-28T18:45:17.761Z","datePublished":"2026-08-04T15:36:45.199Z","dateUpdated":"2026-08-04T17:43:20.898Z"},"containers":{"cna":{"providerMetadata":{"orgId":"14ed7db2-1595-443d-9d34-6215bf890778","shortName":"Google","dateUpdated":"2026-08-04T15:36:45.199Z"},"title":"Arbitrary JavaScript Execution via openUrl in @a2ui/web_core","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-244","descriptions":[{"lang":"en","value":"CAPEC-244 Embedded Injection"}]}],"affected":[{"vendor":"Google","product":"@a2ui/web_core","versions":[{"status":"affected","version":"0.9.0"},{"status":"affected","version":"0.9.1-alpha.0"},{"status":"affected","version":"0.9.1-alpha.1"},{"status":"affected","version":"0.9.1-alpha.2"},{"status":"affected","version":"0.9.1-alpha.3"},{"status":"affected","version":"0.9.1-alpha.4"},{"status":"affected","version":"0.9.1-alpha.5"},{"status":"affected","version":"0.9.1"},{"status":"affected","version":"0.9.2"},{"status":"affected","version":"0.10.0"},{"status":"affected","version":"0.10.1"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"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."}]}],"references":[{"url":"https://github.com/a2ui-project/a2ui/security/advisories/GHSA-72qq-p3r5-f7wq"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"UNREPORTED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.1,"vectorString":"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"}}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-04T17:42:13.437105Z","id":"CVE-2026-10032","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-04T17:43:20.898Z"}}]}}