{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-120826","assignerOrgId":"a39b4221-9bd0-4244-95fc-f3e2e07f1deb","state":"PUBLISHED","assignerShortName":"mongodb","dateReserved":"2026-11-02T22:54:48.740Z","datePublished":"2026-11-10T20:22:04.078Z","dateUpdated":"2026-11-10T20:22:04.078Z"},"containers":{"cna":{"providerMetadata":{"orgId":"a39b4221-9bd0-4244-95fc-f3e2e07f1deb","shortName":"mongodb","dateUpdated":"2026-11-10T20:22:04.078Z"},"title":"Improper Authorization in MongoDB Server Sharded View Definition Handling Leads to Cross-Database Unauthorized Access","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"affected":[{"vendor":"MongoDB","product":"MongoDB Server","versions":[{"status":"affected","version":"9.0.0","lessThan":"9.0.7","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"An authorization flaw in the aggregation and view-definition handling of sharded deployments may allow a user holding only basic read-write privileges on a single database to define a view whose underlying processing is not fully subjected to privilege checking. Reading that view may result in unintended access to data belonging to other databases held on the same shard.","supportingMedia":[{"type":"text/html","base64":false,"value":"An authorization flaw in the aggregation and view-definition handling of sharded deployments may allow a user holding only basic read-write privileges on a single database to define a view whose underlying processing is not fully subjected to privilege checking. Reading that view may result in unintended access to data belonging to other databases held on the same shard."}]}],"references":[{"url":"https://jira.mongodb.org/browse/SERVER-137361"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","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":"HIGH","baseScore":7.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":6.5,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"cve_record_builder.py"}}}}