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High8.6Red Hat Linux

High [CVE-2026-0719] Signed to Unsigned Conversion Error Leading to Stack-Based Buffer Overflow in libsoup NTLM Authentication

This high-severity Red Hat Linux advisory covers CVE-2026-0719 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.2 Advanced Update Support.

CVE-2026-0719 Published Jan 8, 2026
CVE-2026-0719
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Signed to Unsigned Conversion Error Leading to Stack-Based Buffer Overflow in libsoup NTLM Authentication. Red Hat rates this important (CVSS 8.6).

Weakness: CWE-121. Affected package(s): libsoup, spice-client-win, devspaces/pluginregistry-rhel9:1770918006, devspaces/openvsx-rhel9:1770851052, devspaces/udi-rhel9:1770913862, libsoup3.

Resolved in Red Hat advisory RHSA-2026:2513 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 11 more.

Affected versions
  • libsoup-0:2.62.3-13.el8_10
  • libsoup-0:2.62.3-3.el8_8.8
  • libsoup-0:2.72.0-12.el9_7.5
  • libsoup-0:2.62.3-1.el8_2.8
  • libsoup-0:2.62.3-2.el8_4.8
  • libsoup-0:2.72.0-8.el9_2.10
  • spice-client-win-0:8.10-7
  • devspaces/pluginregistry-rhel9:1770918006
  • libsoup-0:2.72.0-8.el9_0.9
  • libsoup-0:2.72.0-10.el9_6.6
  • libsoup-0:2.62.2-11.el7_9
  • spice-client-win-0:8.10-7.el8_6.1

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • RHSA-2026:2513

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Update the affected package(s) to the fixed version shipped in RHSA-2026:2513 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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