CVE-2026-53900

脆弱性の種類

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.

影響を受ける製品

• mozilla firefox_mobile

参考情報

• https://bugzilla.mozilla.org/show_bug.cgi?id=2043204
• https://www.mozilla.org/security/advisories/mfsa2026-56/