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CVE-2026-2443

MEDIUM CVSS 3.1: 5.3 EPSS 0.05%
Updated Mar 23, 2026
Red Hat
Parameter Value
CVSS 5.3 (MEDIUM)
Type CWE-125 (Out-of-bounds Read)
Vendor Red Hat
Public PoC No

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 could allow a remote attacker to access portions of server memory beyond the intended response.

Exploitation requires a vulnerable configuration and access to a server using the embedded SoupServer component.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 6

Configuration From (including) Up to (excluding)
Gnome Libsoup
cpe:2.3:a:gnome:libsoup:-:*:*:*:*:*:*:*
Redhat Enterprise_Linux
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
Redhat Enterprise_Linux
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Redhat Enterprise_Linux
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Redhat Enterprise_Linux
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Redhat Enterprise_Linux
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*