{"id":"CVE-2026-49261","aliases":["BIT-mariadb-2026-49261","BIT-mariadb-min-2026-49261","BIT-mysql-client-2026-49261","GHSA-3p3m-4x7c-p4pw"],"url":"https://o3.security/vulnerability/CVE-2026-49261","summary":"MariaDB server has unsafe parameter handling in `wsrep_notify_cmd`","details":"MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through 10.11.17, 11.4.1 through 11.4.11, 11.8.1 through 11.8.7, and 12.3.1 with  `wsrep_notify_cmd` enabled would execute shell commands embedded in the name of the joiner node. This is fixed in 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2. As a workaround, anyone who cannot upgrade now should disable `wsrep_notify_cmd`.","published":"2026-06-11T17:13:20.776Z","modified":"2026-08-14T09:05:46.326864Z","cvss":{"score":10,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Bitnami","name":"mariadb","fixedVersion":"10.6.27"}],"fix":null,"references":[{"type":"WEB","url":"https://jira.mariadb.org/browse/MDEV-39721"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49261.json"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:25143"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:25145"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:33093"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:33412"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:33464"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:33481"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:33482"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:49522"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:52848"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:54142"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-49261"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49261.json"},{"type":"ADVISORY","url":"https://github.com/MariaDB/server/security/advisories/GHSA-3p3m-4x7c-p4pw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49261"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2487957"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-14T09:05:46.326864Z"}}