CVE-2026-13356

Description

A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 152.3.

CVSS Vector

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2047768
• https://www.mozilla.org/security/advisories/mfsa2026-65/