{"id":"CVE-2026-101776","title":"mysql: mysql: Denial of Service in Group Replication plugin (CVE-2026-101776)","summary":"A flaw was found in the MySQL Group Replication plugin. A remote attacker with high privileges and network access can exploit this vulnerability across multiple protocols. Successful exploitation allows the attacker to cause the service to…","severity":"medium","cvss":4.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":"CWE-835","vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","affected":["enterprise_linux 10","enterprise_linux 9"],"published":"2026-10-20","updated":"2026-10-22","sourceUpdated":"2026-10-22T22:19:36+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101776.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101776.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-101776"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2557128"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-101776"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101776"},{"url":"https://www.oracle.com/security-alerts/cpuoct2026.html"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00287,"epssPercentile":0.21108,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-22T17:26:40.229193Z"},"ingestedAt":"2026-10-20T22:23:33.924Z","slug":"CVE-2026-101776","body":"## Overview\n\nA flaw was found in the MySQL Group Replication plugin. A remote attacker with high privileges and network access can exploit this vulnerability across multiple protocols. Successful exploitation allows the attacker to cause the service to hang or crash repeatedly, resulting in a complete Denial of Service (DoS).\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-22 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101776.json)\n\n**mysql: mysql: Denial of Service in Group Replication plugin** — rated Moderate by Red Hat. Released 2026-10-20, updated 2026-10-22.\n\nAffected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n\nNot affected:\n\n- Red Hat Enterprise Linux 6\n- Red Hat Hardened Images\n\n## Remediation\n\nAffected","depth":"sunlit","depthScore":27,"depthScoreParts":{"impact":27,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}