CVE-2026-12461 is an out of bounds read vulnerability in the WebRTC implementation of Google Chrome on Windows platforms. The flaw allows remote attackers to obtain potentially sensitive information from process memory by delivering a specially crafted HTML page. The vulnerability affects Chrome versions prior to 149.0.7827.155 and was publicly disclosed on June 17, 2026. The Chromium security team rates this vulnerability as high severity. A stable channel update including the fix is referenced in the vendor advisory.

Successful exploitation of this vulnerability could allow a remote attacker to read sensitive information from the memory of the Chrome process, potentially leading to information disclosure. There is no indication of known exploits in the wild at the time of disclosure.

Users should update Google Chrome on Windows to version 149.0.7827.155 or later to remediate this vulnerability. The vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01750511403.html confirms the availability of this fix. No additional mitigation steps are indicated by the vendor.