What is CVE-2026-2378?

CVE-2026-2378 is a high-severity vulnerability in Thebrowser Arc Search, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 7.4/10. Published 2026-03-20.

How severe is CVE-2026-2378?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Thebrowser Arc Search

CVE-2026-2378

ArcSearch for Android versions prior to 1.12.7 could display a different domain in the address bar than the content being shown, enabling address bar spoofing after user interaction via crafted web content.

EPSS: 0.002 (7.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N.

Affected products

Thebrowser Arc_search
The Browsercompany Of New York Arcsearch — versions 0

Weakness classification (CWE)

CWE-1021 — Improper Restriction of Rendered UI Layers or Frames (Clickjacking)

References

59469e6c-7ea7-446f-8e43-06aa32c115e8 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-2378?: CVE-2026-2378 is a high-severity vulnerability in Thebrowser Arc Search, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 7.4/10. Published 2026-03-20.
How severe is CVE-2026-2378?: High severity. CVSS v3 base score is 7.4 out of 10.