Auth bypass in Google Chrome
CVE-2026-76019
Incorrect authorization in Workers in Google Chrome prior to 151.0.7922.173 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (24.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.003 · change: -0.000
Affected products
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0404570… (Release Notes, Vendor Advisory)
- issues.chromium.org/issues/539032888 (Permissions Required)
Frequently asked questions
- What is CVE-2026-76019?
- CVE-2026-76019 is a high-severity vulnerability in Google Chrome, classified under Incorrect Authorization. CVSS score: 8.1/10. Published 2026-08-20.
- How severe is CVE-2026-76019?
- High severity. CVSS v3 base score is 8.1 out of 10.