CVE-2026-82075

Uncontrolled Resource Consumption in MongoDB Sharded Cluster Router Allows Unauthenticated Denial of Service

State
Published
Severity
8.7 High
Published
Sep 8, 2026
Updated
Sep 8, 2026
Reserved
Aug 27, 2026

Read the record on cve.org

Description

An uncontrolled resource consumption weakness exists in the request-handling path of the MongoDB sharded-cluster router process. A client that has network access to a router port and has not authenticated can supply connection-monitoring parameters that cause the server to expend CPU resources without any rate limiting, degrading or denying service to legitimate clients. No authentication, elevated privileges, or user interaction is required. Only availability is affected; data confidentiality and integrity are not impacted.

Scores

CVSSScoreVectorSource
4.08.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nmongodb
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hmongodb

Weaknesses

  • CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

ProductVersions
MongoDB ServerMongoDB
  • 8.3.0 to before 8.3.9Affected
  • 8.0.0 to before 8.0.30Affected
  • 7.0.0 to before 7.0.41Affected

References

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