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wid-sec-w-2026-0920  ·  Published 2026-03-30  ·  View on BSI CERT-Bund ↗

MongoDB: Vulnerability allows Denial of Service

CVSS 6.0 MEDIUM

Risk Summary

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.

CVEs (1)

Affected Vendors

Open Source

Affected Products (8)

Open Source · MongoDB <8.3.0-rc0
Open Source · MongoDB 8.3.0-rc0
Open Source · MongoDB <8.2.2
Open Source · MongoDB 8.2.2
Open Source · MongoDB <8.0.18
Open Source · MongoDB 8.0.18
Open Source · MongoDB <7.0.31
Open Source · MongoDB 7.0.31

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