- Issued:
- 2026-03-24
- Updated:
- 2026-03-24
RHSA-2026:5640 - Moderate: mysql:8.4 security update
Synopsis
Moderate: mysql:8.4 security update
Type/Severity
Security Advisory Moderate
Topic
An update for the mysql:8.4 module is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
MySQL is a multi-user, multi-threaded SQL database server. It consists of the MySQL server daemon (mysqld) and many client programs and libraries.
Security Fix(es):
-
mysql: Optimizer unspecified vulnerability (CPU Jan 2026) (CVE-2026-21941)
-
mysql: Optimizer unspecified vulnerability (CPU Jan 2026) (CVE-2026-21948)
-
mysql: InnoDB unspecified vulnerability (CPU Jan 2026) (CVE-2026-21936)
-
mysql: Optimizer unspecified vulnerability (CPU Jan 2026) (CVE-2026-21968)
-
mysql: DDL unspecified vulnerability (CPU Jan 2026) (CVE-2026-21937)
-
mysql: Thread Pooling unspecified vulnerability (CPU Jan 2026) (CVE-2026-21964)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 | 9 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian | 9 | ppc64le |
| Red Hat Enterprise Linux for IBM z Systems | 9 | s390x |
| Red Hat Enterprise Linux for ARM 64 | 9 | aarch64 |
Updated Packages
- mecab-debugsource-0.996-3.module+el9.7.0+24088+36dcab8d.4.ppc64le.rpm
- mysql-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mysql-devel-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mysql-debugsource-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mysql-libs-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mysql-test-data-8.4.8-1.module+el9.7.0+24088+36dcab8d.noarch.rpm
- mecab-0.996-3.module+el9.7.0+24088+36dcab8d.4.src.rpm
- mecab-ipadic-EUCJP-2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mysql-devel-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mysql-errmsg-8.4.8-1.module+el9.7.0+24088+36dcab8d.noarch.rpm
- rapidjson-1.1.0-19.module+el9.7.0+24088+36dcab8d.src.rpm
- rapidjson-devel-1.1.0-19.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mecab-0.996-3.module+el9.7.0+24088+36dcab8d.4.ppc64le.rpm
- mecab-ipadic-2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d.src.rpm
- mysql-test-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mysql-libs-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mysql-8.4.8-1.module+el9.7.0+24088+36dcab8d.src.rpm
- mysql-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mecab-debuginfo-0.996-3.module+el9.7.0+24088+36dcab8d.4.ppc64le.rpm
- mysql-server-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mysql-test-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mecab-ipadic-2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- mysql-server-8.4.8-1.module+el9.7.0+24088+36dcab8d.ppc64le.rpm
- rapidjson-doc-1.1.0-19.module+el9.7.0+24088+36dcab8d.noarch.rpm
- mecab-devel-0.996-3.module+el9.7.0+24088+36dcab8d.4.ppc64le.rpm
- mysql-common-8.4.8-1.module+el9.7.0+24088+36dcab8d.noarch.rpm
- mysql-server-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mecab-0.996-3.module+el9.7.0+24088+36dcab8d.4.aarch64.rpm
- mecab-debugsource-0.996-3.module+el9.7.0+24088+36dcab8d.4.aarch64.rpm
- mecab-ipadic-EUCJP-2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mecab-ipadic-2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mysql-libs-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mysql-libs-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mysql-test-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mysql-test-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- rapidjson-devel-1.1.0-19.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mysql-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mecab-debuginfo-0.996-3.module+el9.7.0+24088+36dcab8d.4.aarch64.rpm
- mysql-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mysql-devel-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mecab-devel-0.996-3.module+el9.7.0+24088+36dcab8d.4.aarch64.rpm
- mysql-devel-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mysql-debugsource-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mysql-server-8.4.8-1.module+el9.7.0+24088+36dcab8d.aarch64.rpm
- mysql-debugsource-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mecab-0.996-3.module+el9.7.0+24088+36dcab8d.4.s390x.rpm
- mysql-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mysql-devel-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mecab-debugsource-0.996-3.module+el9.7.0+24088+36dcab8d.4.s390x.rpm
- mysql-test-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mecab-ipadic-2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mecab-debuginfo-0.996-3.module+el9.7.0+24088+36dcab8d.4.s390x.rpm
- mysql-devel-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mysql-server-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mysql-server-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- rapidjson-devel-1.1.0-19.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mecab-devel-0.996-3.module+el9.7.0+24088+36dcab8d.4.s390x.rpm
- mysql-libs-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mysql-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mecab-ipadic-EUCJP-2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mysql-test-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mysql-libs-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.s390x.rpm
- mysql-test-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mecab-debuginfo-0.996-3.module+el9.7.0+24088+36dcab8d.4.x86_64.rpm
- mysql-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mysql-devel-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mysql-server-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mecab-0.996-3.module+el9.7.0+24088+36dcab8d.4.x86_64.rpm
- mysql-server-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mecab-debugsource-0.996-3.module+el9.7.0+24088+36dcab8d.4.x86_64.rpm
- mysql-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mecab-devel-0.996-3.module+el9.7.0+24088+36dcab8d.4.x86_64.rpm
- mysql-debugsource-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mysql-devel-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- rapidjson-devel-1.1.0-19.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mysql-test-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mecab-ipadic-EUCJP-2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mysql-libs-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mysql-libs-debuginfo-8.4.8-1.module+el9.7.0+24088+36dcab8d.x86_64.rpm
- mecab-ipadic-2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d.x86_64.rpm
Fixes
- This content is not included.BZ - 2431384
- This content is not included.BZ - 2431385
- This content is not included.BZ - 2431402
- This content is not included.BZ - 2431409
- This content is not included.BZ - 2431413
- This content is not included.BZ - 2431431
CVEs
References
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.