{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8201","assignerOrgId":"a39b4221-9bd0-4244-95fc-f3e2e07f1deb","state":"PUBLISHED","assignerShortName":"mongodb","dateReserved":"2026-05-08T23:42:58.650Z","datePublished":"2026-05-13T00:12:35.299Z","dateUpdated":"2026-05-13T14:34:27.091Z"},"containers":{"cna":{"providerMetadata":{"orgId":"a39b4221-9bd0-4244-95fc-f3e2e07f1deb","shortName":"mongodb","dateUpdated":"2026-05-13T00:12:35.299Z"},"title":"Use-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Encrypted Fields","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-416","description":"CWE-416: Use After Free","type":"CWE"}]}],"affected":[{"vendor":"MongoDB, Inc.","product":"MongoDB Server","versions":[{"status":"affected","version":"7.0","lessThan":"7.0.34","versionType":"custom"},{"status":"affected","version":"8.0","lessThan":"8.0.23","versionType":"custom"},{"status":"affected","version":"8.2","lessThan":"8.2.9","versionType":"custom"},{"status":"affected","version":"8.3","lessThan":"8.3.2","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"A use-after-free vulnerability exists in MongoDB's Field-Level Encryption (FLE) query analysis component, affecting client-side uses of mongocryptd and crypt_shared. Triggering this vulnerability requires control over the structure of a client's FLE-related query.\n\nThis issue impacts MongoDB Server’s mongocryptd component v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.","supportingMedia":[{"type":"text/html","base64":false,"value":"A use-after-free vulnerability exists in MongoDB's Field-Level Encryption (FLE) query analysis component, affecting client-side uses of mongocryptd and crypt_shared. Triggering this vulnerability requires control over the structure of a client's FLE-related query.<br><br>This issue impacts MongoDB Server’s mongocryptd component v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.<br><br><br><br>"}]}],"references":[{"url":"https://jira.mongodb.org/browse/SERVER-122032","tags":["issue-tracking"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.1,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:L/SI:N/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"HIGH","baseSeverity":"MEDIUM","baseScore":6.4,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H"}}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-13T14:34:19.684867Z","id":"CVE-2026-8201","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-13T14:34:27.091Z"}}]}}