Security Advisory

CVE-2026-86853

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-08 15:14:51

Last updated 2026-09-08 15:48:03

Assigner mozilla

CVSS score 4.3

State PUBLISHED

Description

A malicious webpage could repeatedly trigger external URL schemes, causing system prompts or external application launches. This could make Firefox for iOS temporarily unusable until the page is closed. This vulnerability was fixed in Firefox for iOS 155.1.

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