CVE-2026-101727

A flaw was found in MySQL within the Server Replication component. A remote attacker with high privileges and network access can exploit this vulnerability to trigger an unexpected hang or repeatable crash. This issue results in a complete Denial of Service (DoS), rendering the database service unavailable to legitimate users.

This vulnerability is rated as Moderate severity for Red Hat Enterprise Linux because successful exploitation requires an attacker to possess high administrative privileges over the network to trigger a denial of service. While an attack can lead to a hang or crash affecting database availability, unauthenticated users cannot trigger the condition. In typical Red Hat deployments, restricting privileged database access and limiting network exposure of replication interfaces significantly reduces the operational risk.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.