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CVE-2026-53900

Cookie injection was possible when opening a PDF link PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Mozilla / Firefox for iOSunaffected 152.0 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.