Vulnerability Report

CVE-2026-2443

Title: Out-of-bounds read in libsoup HTTP library

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2026-2443.

CWE Category CWE-125

Published Date Feb 13, 2026

Modified Date Mar 23, 2026

Exploit Status Not Found

Score 5.3 CVSS v3.1

Exploit Probability (EPSS)

0.04%

Vulnerability Summary

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 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.

Impacted Vendors

libsoup 1

gnome 1

Reference Links

https://access.redhat.com/security/cve/CVE-2026-2443 https://bugzilla.redhat.com/show_bug.cgi?id=2439671

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N