CVE-2026-87632 describes a cross-site scripting vulnerability in the SanitizerAPI of Google Chrome before version 153.0.8010.36. The vulnerability enables a remote attacker to bypass the web origin policy through a specially crafted HTML page, potentially allowing unauthorized script execution in the context of another origin. The issue is categorized under CWE-79 (Improper Neutralization of Input During Web Page Generation). No detailed exploit or patch information is available at this time.

Successful exploitation could allow an attacker to bypass the web origin policy, potentially leading to unauthorized script execution in the context of a victim's browser session. This could result in theft of sensitive information or other malicious actions constrained by the browser's security model. However, no known exploits in the wild have been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution when visiting untrusted websites and consider applying any available browser updates promptly once they become available.