CVE-2026-87510 describes an input validation weakness in the FileAPI implementation of Google Chrome before version 153.0.8010.36. This vulnerability enables a remote attacker, who has compromised the renderer process, to execute arbitrary code outside the sandbox environment via a specially crafted HTML page. The issue is categorized under CWE-20 (Improper Input Validation). No further technical details or exploitation methods are provided in the available data.

Successful exploitation could allow an attacker with control over the renderer process to execute arbitrary code outside the sandbox, potentially leading to increased privileges or system compromise. However, exploitation requires prior compromise of the renderer process, limiting the initial attack vector. No known active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vulnerability affects versions prior to 153.0.8010.36, updating to version 153.0.8010.36 or later is recommended once official patches are released. Monitor official Google Chrome security advisories for updates.