CVE-2024-6375Network attack vector

Shard-boundary disclosure via unchecked refinement command

Published Jul 1, 2024 · Updated Aug 1, 2024

Improper authorization in affected MongoDB Server releases allows remote authenticated users to expose shard boundaries or degrade queries. The shard-key refinement command omits its authorization check, so a request sent directly to a shard executes refinement rather than being rejected. A low-privileged account with network access can trigger query-performance degradation or infer chunk boundaries through response timing.

CVSS severity5.4
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in affected MongoDB Server releases allows remote authenticated users to expose shard boundaries or degrade queries. The shard-key refinement command omits its authorization check, so a request sent directly to a shard executes refinement rather than being rejected. A low-privileged account with network access can trigger query-performance degradation or infer chunk boundaries through response timing.

The record

CVE
CVE-2024-6375
Published
Jul 1, 2024
Updated
Aug 1, 2024
Vendor
MongoDB
Product
MongoDB Server
Classifications
CWE-285, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.0 <5.0.22
  2. Affected versionversion=6.0 <6.0.11
  3. Affected versionversion=7.0 <7.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MongoDB · MongoDB Serverversion=5.0 <5.0.22; version=6.0 <6.0.11; version=7.0 <7.0.3

Published CVSS scores

5.4MongoDB, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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