{"id":"CVE-2021-20326","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-20326","generatedAt":"2026-10-27T22:33:49.738Z","title":"A user authorized to performing a specific type of find query may trigger a denial of service.","description":"A user authorized to performing a specific type of find query may trigger a denial of service. This issue affects MongoDB Server v4.4 versions prior to 4.4.4.","published":"2021-04-30T09:15:08.000Z","lastModified":"2026-06-17T03:33:41.000Z","status":"Modified","sourceIdentifier":"cna@mongodb.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-20","CWE-732"],"affected":["mongodb/mongodb"],"epss":{"score":0.00948,"percentile":0.60925,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.95%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://jira.mongodb.org/browse/SERVER-53929","tags":["Issue Tracking","Patch","Vendor Advisory"],"source":"cna@mongodb.com"},{"url":"https://jira.mongodb.org/browse/SERVER-53929","tags":["Issue Tracking","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-20326","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}