{"id":"ALSA-2026:6391","summary":"Moderate: mysql:8.4 security update","details":"MySQL is a multi-user, multi-threaded SQL database server. It consists of the MySQL server daemon (mysqld) and many client programs and libraries.  \n\nSecurity Fix(es):  \n\n  * mysql: Optimizer unspecified vulnerability (CPU Jan 2026) (CVE-2026-21941)\n  * mysql: Optimizer unspecified vulnerability (CPU Jan 2026) (CVE-2026-21948)\n  * mysql: InnoDB unspecified vulnerability (CPU Jan 2026) (CVE-2026-21936)\n  * mysql: Optimizer unspecified vulnerability (CPU Jan 2026) (CVE-2026-21968)\n  * mysql: DDL unspecified vulnerability (CPU Jan 2026) (CVE-2026-21937)\n  * mysql: Thread Pooling unspecified vulnerability (CPU Jan 2026) (CVE-2026-21964)\n\n\nFor 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.\n","modified":"2026-04-17T13:29:13.859037525Z","published":"2026-04-01T00:00:00Z","related":["CVE-2026-21936","CVE-2026-21937","CVE-2026-21941","CVE-2026-21948","CVE-2026-21964","CVE-2026-21968"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6391"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-21936"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-21937"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-21941"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-21948"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-21964"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-21968"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2431384"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2431385"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2431402"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2431409"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2431413"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2431431"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-6391.html"}],"affected":[{"package":{"name":"mecab","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mecab"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.996-2.module_el8.10.0+4060+d4256e26"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6391.json"}},{"package":{"name":"mecab-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mecab-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.996-2.module_el8.10.0+4060+d4256e26"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6391.json"}},{"package":{"name":"mecab-ipadic","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mecab-ipadic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0.20070801-17.module_el8.10.0+4060+d4256e26"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6391.json"}},{"package":{"name":"mecab-ipadic","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mecab-ipadic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0.20070801-17.module_el8.10.0+4154+a69a9128"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6391.json"}},{"package":{"name":"mecab-ipadic-EUCJP","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mecab-ipadic-EUCJP"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0.20070801-17.module_el8.10.0+4060+d4256e26"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6391.json"}},{"package":{"name":"mecab-ipadic-EUCJP","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mecab-ipadic-EUCJP"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0.20070801-17.module_el8.10.0+4154+a69a9128"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6391.json"}},{"package":{"name":"mysql","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mysql"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.4.8-1.module_el8.10.0+4154+a69a9128"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6391.json"}},{"package":{"name":"mysql-common","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mysql-common"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.4.8-1.module_el8.10.0+4154+a69a9128"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6391.json"}},{"package":{"name":"mysql-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mysql-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.4.8-1.module_el8.10.0+4154+a69a9128"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6391.json"}},{"package":{"name":"mysql-errmsg","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mysql-errmsg"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.4.8-1.module_el8.10.0+4154+a69a9128"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6391.json"}},{"package":{"name":"mysql-libs","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mysql-libs"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.4.8-1.module_el8.10.0+4154+a69a9128"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advis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