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4.3 Medium

CVE-2026-86853 A malicious webpage could repeatedly trigger external URL schemes, causing system prompts or external application…

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 and versions

Product Affected versions Fixed in
Firefox for iOS 155.1 earliest → < 155.1 155.1

References

Timeline

  1. Published
  2. Last modified
The 60 CVEs of Firefox for iOS →
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