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.

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.002 (6.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-2378: held from 0.002 to 0.002.

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

Affected products

Weakness classification (CWE)

References

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.