What is CVE-2026-106380?

CVE-2026-106380 is a medium-severity vulnerability in Google Chrome, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 5.4/10. Published 2026-10-06.

How severe is CVE-2026-106380?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Google Chrome

CVE-2026-106380

UI misrepresentation in UI in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to spoof UI elements via a crafted HTML page. (Chromium security severity: Low)

Published 2026-10-06 · last modified 2026-10-07.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L.

EPSS exploit prediction

EPSS: 0.002 (7.5th percentile), scored 2026-10-08.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Google Chrome

Weakness classification (CWE)

CWE-451 — User Interface (UI) Misrepresentation of Critical Information

References

chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_0864717… (Release Notes, Vendor Advisory)
issues.chromium.org/issues/553168380 (Permissions Required)

Frequently asked questions

What is CVE-2026-106380?: CVE-2026-106380 is a medium-severity vulnerability in Google Chrome, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 5.4/10. Published 2026-10-06.
How severe is CVE-2026-106380?: Medium severity. CVSS v3 base score is 5.4 out of 10.