CVE-2025-11021
HIGHDescription
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.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploit Intelligence
Moderate risk: more likely to be exploited than 44% of all known CVEs.
References
- https://access.redhat.com/errata/RHSA-2025:18183
- https://access.redhat.com/errata/RHSA-2025:19713
- https://access.redhat.com/errata/RHSA-2025:19714
- https://access.redhat.com/errata/RHSA-2025:20959
- https://access.redhat.com/errata/RHSA-2025:21032
- https://access.redhat.com/errata/RHSA-2025:21655
- https://access.redhat.com/errata/RHSA-2025:21656
- https://access.redhat.com/errata/RHSA-2025:21657
- https://access.redhat.com/errata/RHSA-2025:21664
- https://access.redhat.com/errata/RHSA-2025:21665
- https://access.redhat.com/errata/RHSA-2025:21666
- https://access.redhat.com/errata/RHSA-2025:21772
- https://access.redhat.com/errata/RHSA-2025:22013
- https://access.redhat.com/security/cve/CVE-2025-11021
- https://bugzilla.redhat.com/show_bug.cgi?id=2399627
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/459
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-19.