CVE-2026-0719

A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in incorrect memory allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may crash unexpectedly, creating a denial-of-service risk.
Configurations

No configuration.

History

09 Jan 2026, 06:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 7.8
v2 : unknown
v3 : 7.5
Summary (en) A flaw was found in libsoup's NTLM (NT LAN Manager) authentication module. When NTLM authentication is enabled, a local attacker can exploit a stack-based buffer overflow vulnerability in the md4sum() function. This allows the attacker to overwrite adjacent memory, which may result in arbitrary code execution with the privileges of the affected application. (en) A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in incorrect memory allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may crash unexpectedly, creating a denial-of-service risk.

08 Jan 2026, 13:15

Type Values Removed Values Added
New CVE

Information

Published : 2026-01-08 13:15

Updated : 2026-01-09 06:16


NVD link : CVE-2026-0719

Mitre link : CVE-2026-0719

CVE.ORG link : CVE-2026-0719


JSON object : View

Products Affected

No product.

CWE
CWE-121

Stack-based Buffer Overflow