CVE-2026-5170

A user with access to the cluster with a limited set of privilege actions can trigger a crash of a mongod process during the limited and unpredictable window when the cluster is being promoted from a replica set to a sharded cluster. This may cause a denial of service by taking down the primary of the replica set. This issue affects MongoDB Server v8.2 versions prior to 8.2.2, MongoDB Server v8.0 versions between 8.0.18, MongoDB Server v7.0 versions between 7.0.31.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://jira.mongodb.org/browse/SERVER-101758	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mongodb:mongodb:::::-:::*
	cpe:2.3:a:mongodb:mongodb:::::-:::*
	cpe:2.3:a:mongodb:mongodb:::::-:::*

History

No history.

Information

Published : 2026-03-30 16:16

Updated : 2026-06-17 10:58

NVD link : CVE-2026-5170

Mitre link : CVE-2026-5170

CVE.ORG link : CVE-2026-5170

JSON object : View

Products Affected

mongodb

mongodb

CWE

CWE-617

Reachable Assertion

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This may cause a denial of service by taking down the primary of the replica set.\n\nThis issue affects MongoDB Server v8.2 versions prior to 8.2.2, MongoDB Server v8.0 versions between 8.0.18, MongoDB Server v7.0 versions between 7.0.31."}, {"lang": "es", "value": "Un usuario con acceso al cl\u00faster con un conjunto limitado de acciones de privilegio puede desencadenar una ca\u00edda de un proceso mongod durante la ventana limitada e impredecible cuando el cl\u00faster est\u00e1 siendo promovido de un conjunto de r\u00e9plicas a un cl\u00faster fragmentado. Esto puede causar una denegaci\u00f3n de servicio al derribar el primario del conjunto de r\u00e9plicas.\n\nEste problema afecta a MongoDB Server v8.2 versiones anteriores a 8.2.2, MongoDB Server v8.0 versiones entre 8.0.18, MongoDB Server v7.0 versiones entre 7.0.31."}], "lastModified": "2026-06-17T10:58:32.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "20BB1767-F789-4A09-BB6F-00B535AEDC02", "versionEndExcluding": "7.0.31", "versionStartIncluding": "7.0.0"}, {"criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "EAD79FD4-B8A1-463B-A796-BCA50C8A0020", "versionEndExcluding": "8.0.18", "versionStartIncluding": "8.0.0"}, {"criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "8CDDADB5-3620-4C02-8161-94B36072C363", "versionEndExcluding": "8.2.2", "versionStartIncluding": "8.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "cna@mongodb.com"}