CVE-2026-25611Network attack vector

Server crash via uncapped ingress buffers

Published Feb 10, 2026 · Updated Feb 10, 2026

Resource exhaustion in MongoDB Server 7.0 before 7.0.29, 8.0 before 8.0.18, and 8.2 before 8.2.4 allows remote attackers to crash mongod. The ingress networking path accepts crafted messages before authentication and allocates message-compression and network buffers without an effective cap. Repeated messages exhaust server memory and terminate the database process, interrupting availability without granting data access or modification.

CVSS severity8.7
High
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in MongoDB Server 7.0 before 7.0.29, 8.0 before 8.0.18, and 8.2 before 8.2.4 allows remote attackers to crash mongod. The ingress networking path accepts crafted messages before authentication and allocates message-compression and network buffers without an effective cap. Repeated messages exhaust server memory and terminate the database process, interrupting availability without granting data access or modification.

The record

CVE
CVE-2026-25611
Published
Feb 10, 2026
Updated
Feb 10, 2026
Vendor
MongoDB
Product
MongoDB Server
Classifications
CWE-405, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 10, 2026Record 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=7.0 <7.0.29
  2. Affected versionversion=8.0 <8.0.18
  3. Affected versionversion=8.2 <8.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MongoDB · MongoDB Serverversion=7.0 <7.0.29; version=8.0 <8.0.18; version=8.2 <8.2.4

Published CVSS scores

8.7MongoDB, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5MongoDB, Inc.CVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-405Asymmetric Resource Consumption (Amplification)
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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