{"id":"CVE-2026-101752","kind":"vulnerability","aliases":["CVE-2026-101752"],"related":[],"title":"MySQL Server: high-privilege user can crash the server over network","description":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Components Services).  Supported versions that are affected are MySQL Server: 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 9.7.0-9.7.3 and  26.7.0-26.7.1. Difficult to exploit vulnerability allows high 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 4.4 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).","summary":"A flaw in the MySQL Server Components Services component lets a highly privileged user cause a hang or repeatable crash of MySQL Server and MySQL Cluster. The sources describe only a denial of service, with no data exposure or code execution.","severity":"medium","cvss":4.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["database","mysql","package","self-hosted"],"not_affected_if":["auth-required","other-mysql-versions"],"how_to_check":"- Run `SELECT VERSION();` in the MySQL client and compare against the affected ranges 9.7.0-9.7.3 and 26.7.0-26.7.1\n- Check whether MySQL Cluster is in use on the affected versions","fix":"- Upgrade MySQL Server to a release after 9.7.3 or 26.7.1 as published by Oracle (exact fixed version: unknown)\n- Upgrade MySQL Cluster to the same fixed release line (exact fixed version: unknown)","status":"open","published_at":"2026-10-20T22:18:30+00:00","first_seen_at":"2026-10-23T21:57:23+00:00","triaged_at":"2026-10-25T04:37:03+00:00","updated_at":"2026-10-25T04:37:03+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-25T04:37:03Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade MySQL Server to a release after 9.7.3 or 26.7.1 as published by Oracle (exact fixed version: unknown)\n- Upgrade MySQL Cluster to the same fixed release line (exact fixed version: unknown)","reach":"network","title":"MySQL Server: high-privilege user can crash the server over network","impact":"low","summary":"A flaw in the MySQL Server Components Services component lets a highly privileged user cause a hang or repeatable crash of MySQL Server and MySQL Cluster. The sources describe only a denial of service, with no data exposure or code execution.","category":"package","nicknames":[],"who_cares":["mysql","self-hosted","database"],"confidence":0.7,"needs_auth":"yes","worst_case":"Database server hangs or crashes repeatedly, causing a full denial of service","analyst_note":"Confirm the exact fixed version for each affected release line on Oracle's MySQL security advisory page.","how_to_check":"- Run `SELECT VERSION();` in the MySQL client and compare against the affected ranges 9.7.0-9.7.3 and 26.7.0-26.7.1\n- Check whether MySQL Cluster is in use on the affected versions","needs_analyst":true,"not_affected_if":["other-mysql-versions","auth-required"],"who_is_affected":"Teams running MySQL Server or MySQL Cluster in the affected version ranges are exposed. Exploitation needs a high-privilege account reachable over the network, so deployments that limit database accounts and restrict network access carry lower risk.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000646,"input_tokens":3545,"output_tokens":582,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-101752':15A,18A '-2026':14A,17A '/av':156C '26.7.0':91C,98C '26.7.1':92C,99C '3.1':146C,155C '4.4':149C '9.7.0':89C,95C '9.7.3':90C,96C 'abil':129C 'access':110C 'affect':85C 'allow':104C 'attack':107C,121C 'avail':150C 'base':147C 'caus':39B,131C 'cluster':50B,72C,94C,119C,144C 'code':64B 'complet':138C 'compon':31B,33B,77C,79C 'compromis':115C 'crash':8A,44B,137C 'cve':13A,16A 'cvss':145C,152C,154C 'data':61B 'databas':19B 'denial':56B 'describ':53B 'difficult':100C 'dos':139C 'execut':65B 'exploit':102C 'exposur':62B 'flaw':26B 'frequent':135C 'h':164C 'h/pr':158C 'h/ui':159C 'hang':41B,133C 'high':4A,36B,105C 'high-privileg':3A 'host':24B 'impact':151C 'let':34B 'multipl':112C 'mysql':1A,20B,29B,46B,49B,69C,71C,76C,87C,93C,116C,118C,141C,143C 'n/a':163C 'n/ac':157C 'n/i':162C 'n/s':160C 'network':12A,109C 'oracl':75C 'packag':21B 'privileg':5A,37B,106C 'product':73C 'protocol':113C 'repeat':43B,136C 'result':126C 'score':148C 'self':23B 'self-host':22B 'server':2A,10A,30B,47B,70C,78C,88C,117C,142C 'servic':32B,58B,80C 'sourc':52B 'success':120C 'support':81C 'u/c':161C 'unauthor':128C 'user':6A,38B 'vector':153C 'version':82C 'via':111C 'vulner':66C,103C,124C","nicknames":[],"mitigations":[],"who_affected":"Teams running MySQL Server or MySQL Cluster in the affected version ranges are exposed. Exploitation needs a high-privilege account reachable over the network, so deployments that limit database accounts and restrict network access carry lower risk.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:30+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-101752","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101752","severity":null,"published_at":"2026-10-20T22:18:30+00:00","modified_at":"2026-10-22T18:17:19+00:00","first_seen_at":"2026-10-23T21:57:23+00:00","fetched_at":"2026-10-23T22:28:59+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}