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CVE-2026-53900

4.3 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 4.3 · mozillaNVD modified 2026-10-26 12:10

Affected (CPE criteria) 1

  • cpe:2.3:a:mozilla:firefox_mobile:*:*:*:*:*:iphone_os:*:*

References 2