Bug 2560998 (CVE-2026-116631) - CVE-2026-116631 firefox: External protocol handler (tel:) address bar spoof
Summary: CVE-2026-116631 firefox: External protocol handler (tel:) address bar spoof
Keywords:
Status: NEW
Alias: CVE-2026-116631
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-26 18:47 UTC by OSIDB Bzimport
Modified: 2026-10-27 14:01 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-10-26 18:47:28 UTC 
A malicious web page could open a tel link in a window that was showing a different website, causing the phone-call prompt to appear as if that site had requested the call. This vulnerability was fixed in Firefox for iOS 156.1.
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