What is CVE-2026-8586?

CVE-2026-8586 is a medium-severity vulnerability in Google Chrome, classified under Improper Access Control. CVSS score: 5.5/10. Published 2026-05-14.

How severe is CVE-2026-8586?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Google Chrome

CVE-2026-8586

Inappropriate implementation in Chromoting in Google Chrome prior to 148.0.7778.168 allowed a local attacker to bypass discretionary access control via a malicious file. (Chromium security severity: Medium)

EPSS: 0.000 (0.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.

Affected products

Google Chrome — versions 148.0.7778.168

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

chrome-cve-admin@google.com (Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required)

Frequently asked questions

What is CVE-2026-8586?: CVE-2026-8586 is a medium-severity vulnerability in Google Chrome, classified under Improper Access Control. CVSS score: 5.5/10. Published 2026-05-14.
How severe is CVE-2026-8586?: Medium severity. CVSS v3 base score is 5.5 out of 10.