6.5
Medium
CVE-2026-53899 Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox for iOS 152.0 | earliest → < 152.0 | 152.0 |
References
- bugzilla.mozilla.org bugzilla.mozilla.org
- www.mozilla.org www.mozilla.org
Timeline
- Published
- Last modified
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