CVE-2025-11021CWE-125

Libsoup: out-of-bounds read in cookie date handling of libsoup http library

High · published September 26, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
49.8
In the wild
Unconfirmed
What it is

A flaw was found in the cookie date handling logic of the libsoup HTTP library, widely used by GNOME and other applications for web communication. When processing cookies with specially crafted expiration dates, the library may perform an out-of-bounds memory read. This flaw could result in unintended disclosure of memory contents, potentially exposing sensitive information from the process using libsoup.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00636 · 49.8th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2025-09-26T08:36Z
EPSS history
Timeline
  • 26 SEP 08:36Z
    Libsoup: out-of-bounds read in cookie date handling of libsoup http library
    cvelistv5