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CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2026-86853

Repeated external URL scheme launches could potentially cause a denial of service in Firefox for iOS

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Status
Published
Published
Updated
Assigning organization
mozilla

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Firefox for iOS

  • 155.1 to ≤ *unaffected

References