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Medium5.3Red Hat Linux

Medium [CVE-2026-2100] NULL dereference via C_DeriveKey with specific NULL parameters

This medium-severity Red Hat Linux advisory covers CVE-2026-2100 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat Hardened Images.

CVE-2026-2100 Published Feb 6, 2026
CVE-2026-2100
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

NULL dereference via C_DeriveKey with specific NULL parameters. Red Hat rates this moderate (CVSS 5.3).

Weakness: CWE-824. Affected package(s): p11-kit, insights-proxy/insights-proxy-container-rhel9:1780420428, rhui5/haproxy-rhel9:1779798164, costmanagement/costmanagement-metrics-rhel9-operator:1780946239, p11-kit-main, rhui5/rhua-rhel9:1779798222.

Resolved in Red Hat advisory RHSA-2026:7065 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat Insights proxy 1.5; and 1 more.

Affected versions
  • p11-kit-0:0.26.2-1.el9
  • insights-proxy/insights-proxy-container-rhel9:1780420428
  • rhui5/haproxy-rhel9:1779798164
  • p11-kit-0:0.26.2-1.el10
  • costmanagement/costmanagement-metrics-rhel9-operator:1780946239
  • p11-kit-main-0.26.2-1.1.hum1
  • rhui5/rhua-rhel9:1779798222
  • rhui5/cds-rhel9:1779798159
  • rhui5/installer-rhel9:1779798165

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

Fixed versions
  • RHSA-2026:7065

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-2026:7065 (`sudo dnf update` / `yum update`).

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

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