CVE-2026-103417CWE-346

CVE-2026-103417

Medium · published October 13, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
0.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00078 · 0.1th percentile
Weakness
CWE-346 · Origin Validation Error
Published
2026-10-13T12:16Z
References (2)
https://bugzilla.mozilla.org/show_bug.cgi?id=2068171 · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-105/ · [email protected]
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 13 OCT 07:19Z
    Saved credentials can be autofilled after cross-origin navigation
    cvelistv5
  • 13 OCT 07:19Z
    Saved credentials can be autofilled after cross-origin navigation
    cvelistv5