Medium4.9Red Hat Linux

Medium [CVE-2026-21936] InnoDB unspecified vulnerability (CPU Jan 2026)

This medium-severity Red Hat Linux advisory covers CVE-2026-21936 affecting Red Hat Enterprise Linux 1, Red Hat Enterprise Linux 9, mysql8.4.

CVE-2026-21936 Published Jan 20, 2026

CVE-2026-21936

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

InnoDB unspecified vulnerability (CPU Jan 2026). Red Hat rates this moderate (CVSS 4.9).

Affected package(s): mysql8.4, mysql:8.0, mysql, mysql:8.4. Resolved in Red Hat advisory RHSA-2026:5580 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.

Affected versions

mysql8.4-0:8.4.8-1.el10_1
mysql:8.0-8100020260223150324.489197e6
mysql-0:8.0.45-1.el9_7
mysql:8.4-8100020260219114250.489197e6
mysql:8.4-9070020260313201256.rhel9

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

Fixed versions

RHSA-2026:5580

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-2026:5580 (`sudo dnf update` / `yum update`).

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

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