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CVE-2026-86853

MEDIUM CVSS: 4.3 Published: 2026-09-08 Modified: 2026-09-08

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.

Affected Platforms

Unknown

Weakness Type

CWE-451

References