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CVE-2026-53900

—
CVSS 3.1
4.3 medium
EPSS
<1%p1
Published
()
Modified
Description

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.

Vendors
mozilla
Products
firefox mobile
Weakness
CWE-345, CWE-384
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD CVE.org GitHub PoCs EPSS (0.1%)

In the news

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