RHSA-2026:6391MediumCVSS 6.5

Red Hat Security Advisory: mysql:8.4 security update

Published
April 1, 2026
Last Modified
November 5, 2026

🔗 CVE IDs covered (6)

CVE-2026-21936 →CVE-2026-21937 →CVE-2026-21941 →CVE-2026-21948 →CVE-2026-21964 →CVE-2026-21968 →

📋 Description

CVE-2026-21936 — mysql: InnoDB unspecified vulnerability (CPU Jan 2026) CVE-2026-21937 — mysql: DDL unspecified vulnerability (CPU Jan 2026) CVE-2026-21941 — mysql: Optimizer unspecified vulnerability (CPU Jan 2026) CVE-2026-21948 — mysql: Optimizer unspecified vulnerability (CPU Jan 2026) CVE-2026-21964 — mysql: Thread Pooling unspecified vulnerability (CPU Jan 2026) CVE-2026-21968 — mysql: Optimizer unspecified vulnerability (CPU Jan 2026)

🎯 Affected products75

  • Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-0:0.996-2.module+el8.10.0+23550+bd321b9a.aarch64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-0:0.996-2.module+el8.10.0+23550+bd321b9a.ppc64le (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-0:0.996-2.module+el8.10.0+23550+bd321b9a.s390x (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-0:0.996-2.module+el8.10.0+23550+bd321b9a.src (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-0:0.996-2.module+el8.10.0+23550+bd321b9a.x86_64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-debuginfo-0:0.996-2.module+el8.10.0+23550+bd321b9a.aarch64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-debuginfo-0:0.996-2.module+el8.10.0+23550+bd321b9a.ppc64le (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-debuginfo-0:0.996-2.module+el8.10.0+23550+bd321b9a.s390x (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-debuginfo-0:0.996-2.module+el8.10.0+23550+bd321b9a.x86_64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-debugsource-0:0.996-2.module+el8.10.0+23550+bd321b9a.aarch64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-debugsource-0:0.996-2.module+el8.10.0+23550+bd321b9a.ppc64le (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-debugsource-0:0.996-2.module+el8.10.0+23550+bd321b9a.s390x (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-debugsource-0:0.996-2.module+el8.10.0+23550+bd321b9a.x86_64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-devel-0:0.996-2.module+el8.10.0+23550+bd321b9a.aarch64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-devel-0:0.996-2.module+el8.10.0+23550+bd321b9a.ppc64le (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-devel-0:0.996-2.module+el8.10.0+23550+bd321b9a.s390x (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-devel-0:0.996-2.module+el8.10.0+23550+bd321b9a.x86_64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-ipadic-0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a.aarch64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-ipadic-0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a.ppc64le (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-ipadic-0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a.s390x (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-ipadic-0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a.src (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-ipadic-0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a.x86_64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-ipadic-EUCJP-0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a.aarch64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-ipadic-EUCJP-0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a.ppc64le (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-ipadic-EUCJP-0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a.s390x (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mecab-ipadic-EUCJP-0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a.x86_64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mysql-0:8.4.8-1.module+el8.10.0+24007+c07a67f2.aarch64 (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mysql-0:8.4.8-1.module+el8.10.0+24007+c07a67f2.ppc64le (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mysql-0:8.4.8-1.module+el8.10.0+24007+c07a67f2.s390x (mysql:8.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • +45 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

🔗 References (9)