medium4.3
CVE-2026-53900
Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects in TemporaryDocument, allowing a malicious site to inject a…
Impact
Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects in TemporaryDocument, allowing a malicious site to inject arbitrary cookies into requests to an unrelated target domain. This vulnerability was fixed in Firefox for iOS 152.0.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Firefox Mobile | before 152.0 |