CVE-2026-2378 Address bar spoofing risk in ArcSearch on Android

High 7.4 Published Updated

Attackers can spoof the address bar in ArcSearch for Android, misleading users about the current site after interacting with crafted content.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-2378?

CVE-2026-2378 is a high-severity vulnerability in The BrowserCompany of New York ArcSearch, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-1021

Which versions are affected by CVE-2026-2378?

It affects 1 product.

Products include Thebrowser Arc Search.

How do I fix CVE-2026-2378?

No fix has been published for CVE-2026-2378 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-2378 being exploited?

There is no known exploitation of CVE-2026-2378 in the wild and no public exploit code.

Sources

Also known as GHSA-43v8-mm65-g3xj.

Is CVE-2026-2378 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free