CVE-2026-21968 The advisory has been revoked - it doesn't affect any version of package mariadb-backup (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-MARIADBBACKUP-15359723
- published27 Feb 2026
- disclosed20 Jan 2026
Introduced: 20 Jan 2026
CVE-2026-21968 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mariadb-backup package and not the mariadb-backup package as distributed by RHEL.
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2431409
- https://access.redhat.com/security/cve/CVE-2026-21968
- https://access.redhat.com/errata/RHSA-2026:0136
- https://access.redhat.com/errata/RHSA-2026:0376
- https://access.redhat.com/errata/RHSA-2026:4162
- https://www.oracle.com/security-alerts/cpujan2026.html