Description
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.
Published: 2026-10-13
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 13 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-346
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 08:45:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox For Ios
Weaknesses CWE-200
Vendors & Products Mozilla
Mozilla firefox For Ios

Tue, 13 Oct 2026 07:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Saved credentials can be autofilled after cross-origin navigation
References

Subscriptions

Mozilla Firefox For Ios
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-10-13T12:09:24.689Z

Reserved: 2026-09-30T14:48:16.869Z

Link: CVE-2026-103417

cve-icon Vulnrichment

Updated: 2026-10-13T12:08:33.365Z

cve-icon NVD

Status : Deferred

Published: 2026-10-13T08:16:59.423

Modified: 2026-10-13T16:19:16.897

Link: CVE-2026-103417

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T08:30:19Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor

  • CWE-346

    Origin Validation Error