CVE-2026-116631

MEDIUM 5.4

External protocol handler (tel:) address bar spoof

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	mozilla
Product	firefox for ios
Ecosystems	Browser JavaScript
Industries	Technology
Published	Oct 26, 2026
Last Updated	Oct 26, 2026

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Affected Versions

Mozilla / Firefox for iOS

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=1297353 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-117/

Credits

Yuyang Zhou