Medium severity · published Mar 9, 2026
CVE-2026-2919
Attacker-controlled content shown under spoofed domains in Focus for iOS via stalled navigation and iframe redirect
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
Malicious scripts could display attacker-controlled web content under spoofed domains in Focus for iOS by stalling a _self navigation to an invalid port and triggering an iframe redirect, causing the UI to display a trusted domain without user interaction. This vulnerability was fixed in Focus for iOS 148.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
Firefox Focus · Mozilla
before 148.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2919
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2919
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1975842
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-18/
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