CVE-2026-0719highCWE-121

CVE-2026-0719: high-severity vulnerability in Red Hat Enterprise Linux 10

Libsoup: signed to unsigned conversion error leading to stack-based buffer overflow in libsoup ntlm authentication

Published 08 Jan 2026 · Updated 15 Jul 2026

Follow this CVE + Monitor Red Hat Enterprise Linux + Monitor Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.6epss 0.6%

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.

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

Affected products

Related CVEs — Red Hat Enterprise Linux 10

In the same product, most dangerous first.

CVE-2023-4911HIGHGlibc: buffer overflow in ld.so leading to privilege escalationEPSS 63.8%KEV CVE-2024-6387HIGHOpenssh: regresshion - race condition in ssh allows rce/dosEPSS 99.5%CVE-2024-3094CRITICALXz: malicious code in distributed sourceEPSS 90.9%CVE-2024-12084CRITICALRsync: heap buffer overflow in rsync due to improper checksum length handlingEPSS 72.5%CVE-2023-1183MEDIUMArbitrary file writeEPSS 64.9%CVE-2023-34966HIGHSamba: infinite loop in mdssvc rpc service for spotlightEPSS 62.4%

References