What is CVE-2026-2443?

CVE-2026-2443 is a medium-severity vulnerability in Gnome Libsoup, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2026-02-13.

How severe is CVE-2026-2443?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Out-of-bounds Read in Gnome Libsoup

CVE-2026-2443

A flaw was identified in libsoup, a widely used HTTP library in GNOME-based systems. When processing specially crafted HTTP Range headers, the library may improperly validate requested byte ranges. In certain build configurations, this cou…

Vulnerability class: Buffer Overflow

EPSS: 0.004 (34.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Gnome Libsoup
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Redhat Enterprise_linux — versions 6.0, 7.0, 8.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry, Vendor Advisory)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Issue Tracking, Vendor Advisory)
secalert@redhat.com

Frequently asked questions

What is CVE-2026-2443?: CVE-2026-2443 is a medium-severity vulnerability in Gnome Libsoup, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2026-02-13.
How severe is CVE-2026-2443?: Medium severity. CVSS v3 base score is 5.3 out of 10.