cve-2026-13919

The cve-2026-13919 tag covers reporting on a medium-severity Google Chrome Extensions vulnerability disclosed June 30, 2026. The flaw affects the browser’s site isolation boundary: an attacker who has already compromised a renderer could use a crafted HTML page to bypass isolation. Coverage explains why the issue deserves attention even though it is not described as a code-execution flaw or an in-the-wild zero-day, particularly where organizations rely on Chrome’s extension and renderer security model. The tagged discussion also tracks the fix, which was available before Chrome version 150.0.7871.47, along with the vulnerability’s reflection in the National Vulnerability Database and Chrome release notes.