CVE-2026-101755

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{"bugzilla": {"description": "mysql: mysql: Denial of Service via client programs", "id": "2557806", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2557806"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-835", "details": ["Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Client programs). Supported versions that are affected are MySQL Server: 26.7.0-26.7.1; MySQL Cluster: 26.7.0-26.7.1. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H).", "A flaw was found in MySQL client programs. An authenticated attacker with network access and low privileges could exploit this vulnerability across multiple protocols. A successful attack allows the threat actor to cause an application hang or repeated crash, resulting in a complete Denial of Service (DoS) of the database service."], "name": "CVE-2026-101755", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "mysql8.4", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "mysql", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "mysql", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "mariadb10.11", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "mariadb11.8", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-10-20T21:22:43Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-101755\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-101755\nhttps://www.oracle.com/security-alerts/cpuoct2026.html"], "statement": "This vulnerability is evaluated with a Moderate impact because exploitation demands authenticated access under complex conditions and is strictly limited to availability disruption, with no loss of confidentiality or system integrity. Standard Red Hat Enterprise Linux installations are not affected as the vulnerable code is not present in supported package builds.", "threat_severity": "Moderate"}

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