cvedb.io
CVE-2026-53899
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-06-16T13:16:37.420 · Last modified 2026-06-17T16:36:48.167

Summary

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.

Affected products

mozilla — firefox_mobile

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.