Vulnerability Discovered in Firefox for iOS Allowing Security Policy Bypass

A vulnerability was discovered in Firefox for iOS on 26 May 2026, allowing attackers to bypass security policy controls. The flaw specifically affects the iOS version of the Firefox browser, though no technical details such as CVE identifiers or exploitation methods were provided. The impact is described as a security policy bypass, but no further specifics on potential consequences or attack vectors were disclosed. The advisory was published by CERT-FR under reference CERTFR-2026-AVI-0645. No affected version numbers or mitigation steps were mentioned in the notice.