{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-120567","assignerOrgId":"a39b4221-9bd0-4244-95fc-f3e2e07f1deb","state":"PUBLISHED","assignerShortName":"mongodb","dateReserved":"2026-11-02T16:36:20.651Z","datePublished":"2026-11-03T19:36:46.042Z","dateUpdated":"2026-11-06T19:52:10.947Z"},"containers":{"cna":{"providerMetadata":{"orgId":"a39b4221-9bd0-4244-95fc-f3e2e07f1deb","shortName":"mongodb","dateUpdated":"2026-11-04T16:30:53.153Z"},"title":"EF Core provider: pipeline-form ExecuteUpdate evaluates a user string setter as a $-field reference","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-943","description":"CWE-943: Improper Neutralization of Special Elements in Data Query Logic","type":"CWE"}]}],"affected":[{"vendor":"MongoDB","product":"Entity Framework Core Provider","versions":[{"status":"affected","version":"9.1.3","lessThanOrEqual":"9.1.4","versionType":"semver"},{"status":"affected","version":"10.0.3","lessThanOrEqual":"10.0.4","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"The MongoDB Entity Framework Core provider does not neutralize special elements in values passed to SetProperty when an ExecuteUpdate call also contains a setter that reads the entity being updated. In that case the update is sent as an aggregation pipeline, and a caller-supplied string beginning with $ is evaluated as an expression rather than stored as data. A party who can influence such a value may modify or remove fields in the records being updated, or copy other fields of the same record into them.","supportingMedia":[{"type":"text/html","base64":false,"value":"The MongoDB Entity Framework Core provider does not neutralize special elements in values passed to SetProperty when an ExecuteUpdate call also contains a setter that reads the entity being updated. In that case the update is sent as an aggregation pipeline, and a caller-supplied string beginning with $ is evaluated as an expression rather than stored as data. A party who can influence such a value may modify or remove fields in the records being updated, or copy other fields of the same record into them."}]}],"references":[{"url":"https://jira.mongodb.org/browse/EF-478"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","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":"LOW","baseScore":2.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/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":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":5.4,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"}}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-06T19:51:28.459131Z","id":"CVE-2026-120567","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":"2026-11-06T19:52:10.947Z"}}]}}