Auth bypass in Google Chrome
CVE-2026-0628
Insufficient policy enforcement in WebView tag in Google Chrome prior to 143.0.7499.192 allowed an attacker who convinced a user to install a malicious extension to inject scripts or HTML into a privileged page via a crafted Chrome Extension. (Chromium security severity: High)
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.212 (97.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.067 · newest: 0.212 · change: +0.146
Affected products
- Google Chrome — versions 143.0.7499.192
Weakness classification (CWE)
Public proof-of-concept exploits
References
- chromereleases.googleblog.com/2026/01/stable-channel-update-for-desktop.html (Release Notes)
- issues.chromium.org/issues/463155954 (Permissions Required, Issue Tracking)
Frequently asked questions
- What is CVE-2026-0628?
- CVE-2026-0628 is a high-severity vulnerability in Google Chrome, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-01-07.
- How severe is CVE-2026-0628?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2026-0628 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.