What is CVE-2026-79086?

CVE-2026-79086 is a medium-severity vulnerability in Google Chrome, classified under Missing Authorization. CVSS score: 5.1/10. Published 2026-08-25.

How severe is CVE-2026-79086?

Medium severity. CVSS v3 base score is 5.1 out of 10.

Auth bypass in Google Chrome

CVE-2026-79086

Missing authorization in CustomTabs in Google Chrome on on Android prior to 152.0.7977.65 allowed a local attacker to obtain sensitive information via a co-installed app. (Chromium security severity: Medium)

Vulnerability class: Broken Access Control

Published 2026-08-25 · last modified 2026-08-28.

CVSS v3 metric

CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (1.0th percentile), scored 2026-10-10.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · 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/511804361 (Permissions Required)

Frequently asked questions

What is CVE-2026-79086?: CVE-2026-79086 is a medium-severity vulnerability in Google Chrome, classified under Missing Authorization. CVSS score: 5.1/10. Published 2026-08-25.
How severe is CVE-2026-79086?: Medium severity. CVSS v3 base score is 5.1 out of 10.