Is CVE-2026-0719 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-0719 being exploited in the wild.

How severe is CVE-2026-0719?

High severity, with a CVSS score of 8.6, published 8 January 2026.

Is there a fix for CVE-2026-0719?

A patch was published on 2026-02-04: Red Hat released initial patches for RHEL 8.8 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-0719 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-0719?

Check whether you run Gnome Libsoup at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-0719: GNOME libsoup stack buffer overflow in NTLM authentication

CVE-2026-0719 · Severity: high · CVSS 8.6 · Published 2026-01-08

A security vulnerability has been found in libsoup, a widely used networking library that helps applications communicate over the internet. When an application using this library processes an unusually long password during login, it can cause the software to crash unexpectedly. This could allow an attacker to disrupt services or potentially gain unauthorized access to system memory.

Technologies: Gnome Libsoup. Vendors: Gnome.

Quick answers

Is CVE-2026-0719 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-0719 being exploited in the wild.
How severe is CVE-2026-0719?: High severity, with a CVSS score of 8.6, published 8 January 2026.
Which products and versions are affected?: Gnome Libsoup 2.62.3, 2.72.0.
Is there a fix for CVE-2026-0719?: A patch was published on 2026-02-04: Red Hat released initial patches for RHEL 8.8 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-0719 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-0719?: Check whether you run Gnome Libsoup at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stack-based buffer overflow (CWE-121) exists in the NTLM authentication handling of the libsoup HTTP library. The vulnerability is caused by a signed-to-unsigned integer conversion error during internal size calculations when processing extremely long passwords. This leads to an incorrect memory allocation on the stack followed by an unsafe memory copy operation. A remote, unauthenticated attacker can exploit this by providing a malicious password string, resulting in an application crash (DoS) or potentially arbitrary code execution. Red Hat has released several security advisories (e.g., RHSA-2026:1948) providing patched versions for affected Enterprise Linux distributions.

Affected products

GNOME libsoup 2.62.3, 2.72.0
Red Hat Enterprise Linux 7, 8, 9, 10

Timeline

2026-01-08: disclosed
2026-01-08: advisory
2026-02-04: patched: Red Hat released initial patches for RHEL 8.8

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.