CVE-2025-4945 — Libsoup: integer overflow in cookie expiration date handling in libsoup
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 …
Published: 2025-05-19 · CVSS: 3.7 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7