CVE-2025-4945 LOW

CVE-2025-4945: Libsoup: integer overflow in cookie expiration date handling in libsoup

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-190
Published May 19, 2025
Last update March 19, 2026

CVSS base score

3.7/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

A flaw was found in the cookie parsing logic of the libsoup HTTP library, used in GNOME applications and other software. The vulnerability arises when processing the expiration date of cookies, where a specially crafted value can trigger an integer overflow. This may result in undefined behavior, allowing an attacker to bypass cookie expiration logic, causing persistent or unintended cookie behavior. The issue stems from improper validation of large integer inputs during date arithmetic operations within the cookie parsing routines.

Key dates

02Disclosure timeline

May 19, 2025 CVE published
March 19, 2026 Record updated