CVE-2024-8305Network attack vector

Secondary crashes via inconsistent prepareUnique enforcement

Published Oct 21, 2024 · Updated Oct 21, 2024

Denial of service in MongoDB Server 6.0 before 6.0.17, 7.0 before 7.0.13, or 7.3 before 7.3.4 allows remote authenticated users to crash secondaries. The prepareUnique index transition incorrectly enforces uniqueness constraints on replica-set secondaries when replicated writes encounter duplicate keys. Reaching the fault requires permission to modify the index and write affected data; multiple secondary crashes can leave the replica set without a primary.

CVSS severity6.5
Medium
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in MongoDB Server 6.0 before 6.0.17, 7.0 before 7.0.13, or 7.3 before 7.3.4 allows remote authenticated users to crash secondaries. The prepareUnique index transition incorrectly enforces uniqueness constraints on replica-set secondaries when replicated writes encounter duplicate keys. Reaching the fault requires permission to modify the index and write affected data; multiple secondary crashes can leave the replica set without a primary.

The record

CVE
CVE-2024-8305
Published
Oct 21, 2024
Updated
Oct 21, 2024
Vendor
MongoDB
Product
MongoDB Server
Classifications
CWE-1288, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 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=6.0 <6.0.17
  2. Affected versionversion=7.0 <7.0.13
  3. Affected versionversion=7.3 <7.3.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MongoDB · MongoDB Serverversion=6.0 <6.0.17; version=7.0 <7.0.13; version=7.3 <7.3.4

Published CVSS scores

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

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-1288Improper Validation of Consistency within Input
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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