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High7.8Red Hat Linux

High [CVE-2026-31488] Do not skip unrelated mode changes in DSC validation

This high-severity Red Hat Linux advisory covers CVE-2026-31488 affecting Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat Enterprise Linux 8.8 Telecommunications Update Service.

CVE-2026-31488 Published Apr 22, 2026
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Do not skip unrelated mode changes in DSC validation. Red Hat rates this important (CVSS 7.8).

Weakness: CWE-1288. Affected package(s): kernel, kernel-rt.

Resolved in Red Hat advisory RHSA-2026:27354 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; and 2 more.

Affected versions
  • kernel-0:5.14.0-687.19.1.el9_8
  • kernel-rt-0:4.18.0-553.136.1.rt7.477.el8_10
  • kernel-0:4.18.0-553.136.1.el8_10

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

Fixed versions
  • RHSA-2026:27354

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-2026:27354 (`sudo dnf update` / `yum update`).

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

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