What is CVE-2026-13857?

CVE-2026-13857 is a medium-severity vulnerability in Google Chrome, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 4.2/10. Published 2026-06-30.

How severe is CVE-2026-13857?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Google Chrome

CVE-2026-13857

Inappropriate implementation in Geometry in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Published 2026-06-30 · last modified 2026-07-01.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.002 (10.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Google Chrome — versions 150.0.7871.47

Weakness classification (CWE)

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

References

chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352… (Release Notes)
issues.chromium.org/issues/479203484 (Permissions Required)

Frequently asked questions

What is CVE-2026-13857?: CVE-2026-13857 is a medium-severity vulnerability in Google Chrome, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 4.2/10. Published 2026-06-30.
How severe is CVE-2026-13857?: Medium severity. CVSS v3 base score is 4.2 out of 10.