CVE-2026-11266 describes an inappropriate implementation in the Safe Browsing component of Google Chrome before version 149.0.7827.53. This vulnerability permits a remote attacker to bypass Safe Browsing protections by using a crafted malicious file. The issue is categorized under CWE-693 (Protection Mechanism Failure). The CVSS v3.1 base score is 4.3, indicating a medium severity with network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality impact, low integrity impact, and no availability impact. There is no explicit vendor advisory statement confirming a fix, and no known exploits have been reported.

The vulnerability allows attackers to bypass Safe Browsing protections in affected versions of Google Chrome, potentially enabling delivery or execution of malicious content that would otherwise be blocked or warned against. The impact is limited to integrity as per the CVSS vector, with no direct confidentiality or availability effects reported.

Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html for current remediation guidance. Until an official fix is confirmed, users should exercise caution when handling files from untrusted sources and consider additional endpoint protection measures.