What is CVE-2026-79058?

CVE-2026-79058 is a critical-severity vulnerability in Google Chrome, classified under Missing Authorization. CVSS score: 9.1/10. Published 2026-08-25.

How severe is CVE-2026-79058?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Google Chrome

CVE-2026-79058

Missing authorization in Passwords in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to spoof UI elements via a crafted HTML page. (Chromium security severity: Low)

Vulnerability class: Broken Access Control

Published 2026-08-25 · last modified 2026-08-31.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (27.4th percentile), scored 2026-10-10.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Google Chrome

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176… (Release Notes, Vendor Advisory)
issues.chromium.org/issues/519242511 (Permissions Required)

Frequently asked questions

What is CVE-2026-79058?: CVE-2026-79058 is a critical-severity vulnerability in Google Chrome, classified under Missing Authorization. CVSS score: 9.1/10. Published 2026-08-25.
How severe is CVE-2026-79058?: Critical severity. CVSS v3 base score is 9.1 out of 10.