CVE-2026-49261
10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MariaDB | server | >= 10.6.1, < 10.6.27 | affected |
| MariaDB | server | >= 10.11.1, < 10.11.18 | affected |
| MariaDB | server | >= 11.4.1, < 11.4.12 | affected |
| MariaDB | server | >= 11.8.1, < 11.8.8 | affected |
| MariaDB | server | = 12.3.1 | affected |
Weaknesses
- CWE-78: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: total
mariadb: MariaDB Server: Arbitrary code execution via wsrep_notify_cmd
Additional References
- https://access.redhat.com/security/cve/CVE-2026-49261
- https://bugzilla.redhat.com/show_bug.cgi?id=2487957
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49261.json
- https://access.redhat.com/errata/RHSA-2026:33412
- https://access.redhat.com/errata/RHSA-2026:33093
- https://access.redhat.com/errata/RHSA-2026:33464
- https://access.redhat.com/errata/RHSA-2026:33482
- https://access.redhat.com/errata/RHSA-2026:33481
- https://access.redhat.com/errata/RHSA-2026:25145
- https://access.redhat.com/errata/RHSA-2026:25143
References
- https://github.com/MariaDB/server/security/advisories/GHSA-3p3m-4x7c-p4pw
- https://jira.mariadb.org/browse/MDEV-39721
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