Buffer overflow in Red Hat Enterprise Linux 10

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.

Vulnerability class: Buffer Overflow

EPSS: 0.006 (43.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-0719?
CVE-2026-0719 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under Stack-based Buffer Overflow. CVSS score: 8.6/10. Published 2026-01-08.
How severe is CVE-2026-0719?
High severity. CVSS v3 base score is 8.6 out of 10.