What is CVE-2026-91717?

CVE-2026-91717 is a medium-severity vulnerability in Google Chrome, classified under Missing Authorization. CVSS score: 5.1/10. Published 2026-09-15.

How severe is CVE-2026-91717?

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

Auth bypass in Google Chrome

CVE-2026-91717

Missing authorization in Android in Google Chrome on on Android prior to 153.0.8010.47 allowed a local attacker to obtain sensitive information via a co-installed app. (Chromium security severity: High)

Vulnerability class: Broken Access Control

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.

Affected products

Google Chrome

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

chrome-cve-admin@google.com
chrome-cve-admin@google.com

Frequently asked questions

What is CVE-2026-91717?: CVE-2026-91717 is a medium-severity vulnerability in Google Chrome, classified under Missing Authorization. CVSS score: 5.1/10. Published 2026-09-15.
How severe is CVE-2026-91717?: Medium severity. CVSS v3 base score is 5.1 out of 10.