A high-severity vulnerability, tracked as CVE-2026-0628, was identified in the WebView tag implementation of Google Chrome prior to version 143.0.7499.192. The flaw allowed attackers to bypass policy enforcement by convincing users to install a malicious Chrome extension, which could then inject scripts or HTML into privileged pages, potentially leading to remote code execution or data theft. Google has addressed this issue with a security patch in Chrome 143, mitigating the risk for affected users.
Security researchers highlighted the importance of updating to the latest Chrome version to prevent exploitation of this vulnerability. The issue was rated with a CVSS score of 8.8 (High) and was confirmed to be remotely exploitable. No evidence of active exploitation was reported at the time of disclosure, but the vulnerability's nature underscores the ongoing risks associated with browser extension security and policy enforcement mechanisms.

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On 2026-01-07, HKCERT published a security bulletin covering the Google Chrome security restriction bypass vulnerability. The advisory reflected downstream notification and guidance following Google's disclosure and patch.
By the time of public disclosure on 2026-01-07, reports noted that proof-of-concept exploit code for CVE-2026-0628 had been observed on GitHub. This indicated that technical exploit details were already publicly available alongside the patch release.
On 2026-01-07, Google publicly disclosed and released a security update for CVE-2026-0628, a high-severity policy enforcement bypass in Chrome's WebView tag affecting versions prior to 143.0.7499.192. The flaw could let a malicious extension inject scripts or HTML into privileged pages after user installation.
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