{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4358", "assignerOrgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb", "state": "PUBLISHED", "assignerShortName": "mongodb", "dateReserved": "2026-03-17T18:55:18.644Z", "datePublished": "2026-03-17T19:00:07.518Z", "dateUpdated": "2026-03-17T20:08:24.920Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb", "shortName": "mongodb", "dateUpdated": "2026-03-17T19:00:07.518Z"}, "title": "Memory safety issues in slot-based execution hash table spill", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-415", "description": "CWE-415 Double free", "type": "CWE"}]}], "affected": [{"vendor": "MongoDB Inc", "product": "MongoDB Server", "versions": [{"status": "affected", "version": "8.2", "lessThan": "8.2.6", "versionType": "custom"}, {"status": "affected", "version": "8.0", "lessThan": "8.0.20", "versionType": "custom"}, {"status": "affected", "version": "7.0", "lessThan": "7.0.31", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.&nbsp;<br>"}]}], "references": [{"url": "https://jira.mongodb.org/browse/SERVER-118849"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "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:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/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 1.0.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-17T20:03:27.629685Z", "id": "CVE-2026-4358", "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": "2026-03-17T20:08:24.920Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-4358", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-17T20:03:27.629685Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-17T20:06:48.279Z"}}], "cna": {"title": "Memory safety issues in slot-based execution hash table spill", "source": {"discovery": "INTERNAL"}, "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.1, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "MongoDB Inc", "product": "MongoDB Server", "versions": [{"status": "affected", "version": "8.2", "lessThan": "8.2.6", "versionType": "custom"}, {"status": "affected", "version": "8.0", "lessThan": "8.0.20", "versionType": "custom"}, {"status": "affected", "version": "7.0", "lessThan": "7.0.31", "versionType": "custom"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://jira.mongodb.org/browse/SERVER-118849"}], "x_generator": {"engine": "Vulnogram 1.0.0"}, "descriptions": [{"lang": "en", "value": "A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.", "supportingMedia": [{"type": "text/html", "value": "A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.&nbsp;<br>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-415", "description": "CWE-415 Double free"}]}], "providerMetadata": {"orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb", "shortName": "mongodb", "dateUpdated": "2026-03-17T19:00:07.518Z"}}}, "cveMetadata": {"cveId": "CVE-2026-4358", "state": "PUBLISHED", "dateUpdated": "2026-03-17T20:08:24.920Z", "dateReserved": "2026-03-17T18:55:18.644Z", "assignerOrgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb", "datePublished": "2026-03-17T19:00:07.518Z", "assignerShortName": "mongodb"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*", "matchCriteriaId": "20BB1767-F789-4A09-BB6F-00B535AEDC02", "versionEndExcluding": "7.0.31", "versionStartIncluding": "7.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*", "matchCriteriaId": "343C4216-8507-44B6-B692-7A7B66455402", "versionEndExcluding": "8.0.20", "versionStartIncluding": "8.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*", "matchCriteriaId": "5A773422-F80B-477C-BD39-1DE25E94BADD", "versionEndExcluding": "8.2.6", "versionStartIncluding": "8.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk."}, {"lang": "es", "value": "Una consulta de agregaci\u00f3n especialmente dise\u00f1ada con $lookup por un usuario autenticado con privilegios de escritura puede causar un problema de memoria de doble liberaci\u00f3n o uso despu\u00e9s de liberaci\u00f3n en el motor de ejecuci\u00f3n basado en ranuras (SBE) cuando una tabla hash en memoria se vuelca a disco."}], "id": "CVE-2026-4358", "lastModified": "2026-04-02T12:16:02.273", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 4.7, "source": "cna@mongodb.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@mongodb.com", "type": "Secondary"}]}, "published": "2026-03-17T20:16:15.030", "references": [{"source": "cna@mongodb.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://jira.mongodb.org/browse/SERVER-118849"}], "sourceIdentifier": "cna@mongodb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "cna@mongodb.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[8.2,8.2.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[8.0,8.0.20)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[7.0,7.0.31)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "product": "mongodb_server", "vendor": "mongodb"}], "analysis": {"en": {"generated_at": "2026-04-02T13:53:33.861536+00:00", "value": {"mitigation_remediation": ["Update MongoDB Server to the latest release that includes the SBE double\u2011free fix.", "Restrict $lookup aggregation commands to trusted users by enforcing least\u2011privilege access controls.", "Continuously monitor server logs for crash or memory\u2011corruption events and configure alerts for repeated failures.", "If a patch is unavailable, consider disabling the SBE engine or restricting $lookup usage in your deployment configuration."], "summary": {"action": "Patch", "impact": "Memory corruption via double free or use\u2011after\u2011free in MongoDB Server's SBE engine"}, "threat_synthesis": {"affected_systems": "MongoDB Inc\u2019s MongoDB Server is the impacted product. No specific version numbers are listed, so any release that implements the SBE engine and supports the $lookup aggregation syntax may be vulnerable.", "description_and_impact": "MongoDB Server implements a slot\u2011based execution (SBE) engine that stores intermediate hash tables in memory. When an authenticated user with write privileges submits a crafted aggregation query that uses the $lookup operator, the engine may spill an in\u2011memory hash table to disk, triggering a double\u2011free or use\u2011after\u2011free memory bug. The resulting memory corruption can cause the server to crash or behave unpredictably, potentially leading to a denial\u2011of\u2011service event. The vulnerability is identified as CWE\u2011415, a double free issue.", "risk_and_exploitability": "The CVSS score of 6.1 indicates a moderate severity. An EPSS score of less than 1% suggests a low likelihood of exploitation in the field. The vulnerability is not present in the CISA KEV catalog. Exploitation requires an authenticated account with write permissions to run the malicious aggregation query, limiting the attack surface to privileged users or compromised accounts. While the description does not state arbitrary code execution, the memory corruption could lead to crashes or other unintended behavior that disrupts service availability."}}}}, "created": "2026-03-18T10:42:57.327630+00:00", "updated": "2026-04-02T20:23:36.870576+00:00", "vendors": ["mongodb", "mongodb$PRODUCT$mongodb_server"]}