{"id":"CVE-2026-101615","kind":"vulnerability","aliases":["CVE-2026-101615"],"related":[],"title":"MySQL Server: InnoDB flaw lets a privileged local user crash the database","description":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB).  Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 and  26.7.0-26.7.1. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server, MySQL Cluster executes 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:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).","summary":"A flaw in the InnoDB storage engine of MySQL Server and MySQL Cluster can be triggered by a highly privileged user with logon to the host, causing a hang or repeatable crash. The impact is denial of service (availability only), with no confidentiality or integrity loss stated.","severity":"medium","cvss":4.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["database-admins","innodb","mysql","runtime","self-hosted"],"not_affected_if":["no-privileged-local-logon","version-outside-affected-ranges"],"how_to_check":"- Run `SELECT VERSION();` in the MySQL client and compare against the affected ranges: MySQL Server 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1.","fix":"- Move MySQL Server or MySQL Cluster to a release that Oracle lists as fixed in its Critical Patch Update for the affected branch; the sources do not name the fixed version numbers.","status":"open","published_at":"2026-10-20T22:18:15+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","triaged_at":"2026-10-25T04:37:04+00:00","updated_at":"2026-10-25T04:37:04+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-10-25T04:37:04Z","model":"claude-haiku-5-5","output":{"fix":"- Move MySQL Server or MySQL Cluster to a release that Oracle lists as fixed in its Critical Patch Update for the affected branch; the sources do not name the fixed version numbers.","reach":"local","title":"MySQL Server: InnoDB flaw lets a privileged local user crash the database","impact":"low","summary":"A flaw in the InnoDB storage engine of MySQL Server and MySQL Cluster can be triggered by a highly privileged user with logon to the host, causing a hang or repeatable crash. The impact is denial of service (availability only), with no confidentiality or integrity loss stated.","category":"runtime","nicknames":[],"who_cares":["mysql","innodb","self-hosted","database-admins"],"confidence":0.7,"needs_auth":"yes","worst_case":"Database server hangs or crashes repeatedly, causing denial of service","analyst_note":"","how_to_check":"- Run `SELECT VERSION();` in the MySQL client and compare against the affected ranges: MySQL Server 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1.","needs_analyst":false,"not_affected_if":["version-outside-affected-ranges","no-privileged-local-logon"],"who_is_affected":"Only deployments running one of the listed versions are exposed, and the attacker needs a privileged account with logon to the machine where MySQL runs. Teams on managed MySQL services or on versions outside the listed ranges can skip it, but the sources do not say which hosted providers have patched.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000677,"input_tokens":3597,"output_tokens":634,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-101615':15A,18A '-2026':14A,17A '/av':173C '26.7.0':100C,111C '26.7.1':101C,112C '3.1':163C,172C '4.4':166C '8.0.0':104C '8.0.49':105C '8.4.0':96C,106C '8.4.12':97C,107C '9.7.0':98C,108C '9.7.3':99C,109C 'abil':146C 'admin':21B 'affect':92C 'allow':116C 'attack':119C,138C 'avail':66B,167C 'base':164C 'caus':54B,148C 'cluster':40B,81C,103C,129C,136C,161C 'complet':155C 'compon':86C 'compromis':132C 'confidenti':70B 'crash':10A,59B,154C 'cve':13A,16A 'cvss':162C,169C,171C 'databas':12A,20B 'database-admin':19B 'denial':63B 'dos':156C 'easili':113C 'engin':34B 'execut':130C 'exploit':114C 'flaw':4A,29B 'frequent':152C 'h':181C 'h/ui':176C 'hang':56B,150C 'high':46B,117C 'host':27B,53B 'impact':61B,168C 'infrastructur':124C 'innodb':3A,22B,32B,87C 'integr':72B 'l/ac':174C 'l/pr':175C 'let':5A 'local':8A 'logon':50B,121C 'loss':73B 'mysql':1A,23B,36B,39B,78C,80C,85C,94C,102C,126C,128C,133C,135C,158C,160C 'n/a':180C 'n/i':179C 'n/s':177C 'oracl':84C 'privileg':7A,47B,118C 'product':82C 'repeat':58B,153C 'result':143C 'runtim':24B 'score':165C 'self':26B 'self-host':25B 'server':2A,37B,79C,95C,127C,134C,159C 'servic':65B 'state':74B 'storag':33B 'success':137C 'support':88C 'trigger':43B 'u/c':178C 'unauthor':145C 'user':9A,48B 'vector':170C 'version':89C 'vulner':75C,115C,141C","nicknames":[],"mitigations":[],"who_affected":"Only deployments running one of the listed versions are exposed, and the attacker needs a privileged account with logon to the machine where MySQL runs. Teams on managed MySQL services or on versions outside the listed ranges can skip it, but the sources do not say which hosted providers have patched.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:15+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/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-2026-101615","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101615","severity":null,"published_at":"2026-10-20T22:18:15+00:00","modified_at":"2026-10-21T18:43:53+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","fetched_at":"2026-10-23T22:28:58+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"}