Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site. This vulnerability was fixed in Firefox for iOS 152.0.
Metrics
Affected Vendors & Products
References
History
Tue, 16 Jun 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-345 | |
| Metrics |
cvssV3_1
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Tue, 16 Jun 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mozilla
Mozilla firefox For Ios |
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| Vendors & Products |
Mozilla
Mozilla firefox For Ios |
Tue, 16 Jun 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site. This vulnerability was fixed in Firefox for iOS 152.0. | |
| Title | Cross-origin cookies could be leaked when opening a PDF link | |
| References |
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Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2026-06-16T15:44:21.570Z
Reserved: 2026-06-11T06:20:46.257Z
Link: CVE-2026-53899
Updated: 2026-06-16T15:42:35.973Z
Status : Undergoing Analysis
Published: 2026-06-16T13:16:37.420
Modified: 2026-06-16T17:16:42.767
Link: CVE-2026-53899
No data.
OpenCVE Enrichment
Updated: 2026-06-16T15:45:05Z