CVE-2026-103417

UNKNOWN 0.0

Saved credentials can be autofilled after cross-origin navigation

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Firefox for iOS could autofill saved credentials into a new page if cross-origin navigation occurred while the saved-login UI was open. Autofill was not bound to the originating page or rejected when its origin changed. This vulnerability was fixed in Firefox for iOS 157.1.

Vendor	mozilla
Product	firefox for ios
Ecosystems	Browser JavaScript
Industries	Technology
Published	Oct 13, 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=2068171 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-105/

Credits

planctonone