What is CVE-2026-78912?

CVE-2026-78912 is a medium-severity vulnerability in Google Chrome, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 5.4/10. Published 2026-08-25.

How severe is CVE-2026-78912?

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

Vulnerability in Google Chrome

CVE-2026-78912

UI misrepresentation in Browser in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to spoof UI elements via a crafted HTML page. (Chromium security severity: Medium)

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

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: 0.003 (15.7th percentile), scored 2026-10-10.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.7% 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: 0.003 · change: +0.000

Affected products

Google Chrome

Weakness classification (CWE)

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

References

chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176… (Release Notes, Vendor Advisory)
issues.chromium.org/issues/514078852 (Permissions Required)

Frequently asked questions

What is CVE-2026-78912?: CVE-2026-78912 is a medium-severity vulnerability in Google Chrome, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 5.4/10. Published 2026-08-25.
How severe is CVE-2026-78912?: Medium severity. CVSS v3 base score is 5.4 out of 10.