CVE-2025-4035

Medium

Description

A flaw was found in libsoup. When handling cookies, libsoup clients mistakenly allow cookies to be set for public suffix domains if the domain contains at least two components and includes an uppercase character. This bypasses public suffix protections and could allow a malicious website to set cookies for domains it does not own, potentially leading to integrity issues such as session fixation.

SeverityMedium
CVSS4.3
Exploit probability—
ProductRed Hat Enterprise Linux 10
PublishedApr 29, 2025
First seenApr 29, 2025
Weakness typeCWE-178CWE-178

How to fix

Affected products

ProductAffected versionsFixed in
Red Hat Red Hat Enterprise Linux 10No range specified—
Red Hat Red Hat Enterprise Linux 6No range specified—
Red Hat Red Hat Enterprise Linux 7No range specified—
Red Hat Red Hat Enterprise Linux 8No range specified—
Red Hat Red Hat Enterprise Linux 9No range specified—

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