CVE-2026-81267 — Stalled popup navigation could allow address bar origin spoofing in Firefox for iOS

CVE-2026-81267

Stalled popup navigation could allow address bar origin spoofing in Firefox for iOS PUBLISHED

Description (CNA)

A malicious webpage could stall a popup's cross-origin navigation after commit, causing the address bar to display the destination origin while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 155.0.

Affected (CNA)

Vendor / product	Versions
Mozilla / Firefox for iOS	unaffected 155.0 through *

CWE

No CWE identifiers supplied.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2052758
https://www.mozilla.org/security/advisories/mfsa2026-81/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.