SB2026022528 - Spoofing attack in Firefox for iOS
Published: February 25, 2026
Security Bulletin ID
SB2026022528
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Spoofing attack (CVE-ID: CVE-2026-2634)
CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to desynchronization between the address bar and web content before a response is received in Firefox iOS. A remote attacker can spoof page content for an arbitrary domain name.
Remediation
Install update from vendor's website.