CVE-2026-5170

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.

Affected Software

VendorProductVersion RangeStatus
MongoDBMongoDB Server8.2 < 8.2.2affected
MongoDBMongoDB Server8.0 < 8.0.18affected
MongoDBMongoDB Server7.0 < 7.0.31affected

Weaknesses

  • CWE-617: CWE-617: Reachable Assertion

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References