{"id":"CVE-2026-101797","kind":"vulnerability","aliases":["CVE-2026-101797"],"related":[],"title":"MySQL mysqldump client: flaw lets an attacker take over MySQL servers","description":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Client: mysqldump).  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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).","summary":"A flaw in the mysqldump client of MySQL Server and MySQL Cluster can be abused by an unauthenticated network attacker to take over the server, according to the advisory. Exploitation is hard and needs a person other than the attacker to take an action.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["backups","database","mysql","mysql-cluster","package"],"not_affected_if":["version-outside-affected-range"],"how_to_check":"- Run `mysqldump --version` and compare with the affected ranges: MySQL Server 8.4.0 to 8.4.12, 9.7.0 to 9.7.3, 26.7.0 to 26.7.1; MySQL Cluster 8.0.0 to 8.0.49, 8.4.0 to 8.4.12, 9.7.0 to 9.7.3, 26.7.0 to 26.7.1\n- Run `mysql --version` on the server host to confirm the installed build","fix":"- Upgrade MySQL Server and MySQL Cluster to a release outside the affected ranges listed in the Oracle advisory (exact fixed versions: unknown)\n- Until patched, avoid running mysqldump against untrusted servers (fixed versions and workaround: unknown)","status":"open","published_at":"2026-10-20T22:18:35+00:00","first_seen_at":"2026-10-23T21:57:23+00:00","triaged_at":"2026-10-25T03:19:03+00:00","updated_at":"2026-10-25T03:19:03+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-25T03:19:03Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade MySQL Server and MySQL Cluster to a release outside the affected ranges listed in the Oracle advisory (exact fixed versions: unknown)\n- Until patched, avoid running mysqldump against untrusted servers (fixed versions and workaround: unknown)","reach":"network","title":"MySQL mysqldump client: flaw lets an attacker take over MySQL servers","impact":"high","summary":"A flaw in the mysqldump client of MySQL Server and MySQL Cluster can be abused by an unauthenticated network attacker to take over the server, according to the advisory. Exploitation is hard and needs a person other than the attacker to take an action.","category":"package","nicknames":[],"who_cares":["mysql","mysql-cluster","database","backups"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker takes over the MySQL server after a user action","analyst_note":"Check the Oracle MySQL security advisory for the exact fixed versions and the nature of the required user interaction; the NVD entry does not give them.","how_to_check":"- Run `mysqldump --version` and compare with the affected ranges: MySQL Server 8.4.0 to 8.4.12, 9.7.0 to 9.7.3, 26.7.0 to 26.7.1; MySQL Cluster 8.0.0 to 8.0.49, 8.4.0 to 8.4.12, 9.7.0 to 9.7.3, 26.7.0 to 26.7.1\n- Run `mysql --version` on the server host to confirm the installed build","needs_analyst":true,"not_affected_if":["version-outside-affected-range"],"who_is_affected":"The flaw is in the mysqldump client shipped with affected MySQL Server and MySQL Cluster releases. Teams that run mysqldump, especially from scripts or backup jobs that connect to servers they do not fully control, should check the version. Teams on versions outside the listed ranges can skip it.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000716,"input_tokens":3593,"output_tokens":713,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-101797':14A,17A '-2026':13A,16A '/av':167C '26.7.0':95C,106C '26.7.1':96C,107C '3.1':154C,166C '7.5':157C '8.0.0':99C '8.0.49':100C '8.4.0':91C,101C '8.4.12':92C,102C '9.7.0':93C,103C '9.7.3':94C,104C 'abus':39B 'access':117C 'accord':50B 'action':68B 'advisori':53B 'affect':87C 'allow':112C 'attack':7A,44B,64B,114C,128C,138C,140C 'avail':161C 'backup':18B 'base':155C 'client':3A,30B,81C 'cluster':23B,36B,75C,98C,126C,152C 'compon':80C 'compromis':122C 'confidenti':158C 'cve':12A,15A 'cvss':153C,163C,165C 'databas':19B 'difficult':108C 'exploit':54B,110C 'flaw':4A,26B 'h':175C 'h/a':174C 'h/i':173C 'h/pr':169C 'hard':56B 'human':130C 'impact':162C 'integr':159C 'interact':131C 'let':5A 'multipl':119C 'mysql':1A,10A,20B,22B,32B,35B,72C,74C,79C,89C,97C,123C,125C,149C,151C 'mysql-clust':21B 'mysqldump':2A,29B,82C 'n/ac':168C 'n/ui':170C 'need':58B 'network':43B,116C 'oracl':78C 'packag':24B 'person':60B,134C 'product':76C 'protocol':120C 'r/s':171C 'requir':129C 'result':145C 'score':156C 'server':11A,33B,49B,73C,90C,124C,150C 'success':127C,139C 'support':83C 'take':8A,46B,66B 'takeov':147C 'u/c':172C 'unauthent':42B,113C 'vector':164C 'version':84C 'via':118C 'vulner':69C,111C,143C","nicknames":[],"mitigations":[],"who_affected":"The flaw is in the mysqldump client shipped with affected MySQL Server and MySQL Cluster releases. Teams that run mysqldump, especially from scripts or backup jobs that connect to servers they do not fully control, should check the version. Teams on versions outside the listed ranges can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:35+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-101797","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101797","severity":null,"published_at":"2026-10-20T22:18:35+00:00","modified_at":"2026-10-22T16:17:18+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"}