CVE-2026-18692

highpriority · track · 0EPSS 0.006 · 47 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.57% (47th) EPSS

CVSS 8.8 · high

Is it mine?

11 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

An issue in MongoDB Server's handling of timeseries bucket lifecycle could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed. Subsequent operations could then result in a server crash or, potentially, execution of unintended code.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.2–8.8

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · cna@mongodb.comexploitability 2.8 · impact 5.9

v4.07.7highCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.07.7highCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · cna@mongodb.com

v4.05.2mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416US

affected products (11)

Products and version ranges known to be affected.

Open Source MongoDBall versionscert_bundDEcpe:/a:mongodb:mongodb:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
MONGODB MongoDB Server8.3.0 → 8.3.8enisa_euvdEU
mongodb mongodb8.0.0 → 8.0.29nvdUScpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
mongodb mongodb8.2.0 → 8.2.12nvdUScpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
mongodb mongodb8.3.0 → 8.3.8nvdUScpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
mongodb mongodb= 9.0.0nvdUScpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
mongodb mongodb= 9.1.0nvdUScpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
Bitnami mongodb8.0.0 → 8.0.29osvUSpkg:bitnami/mongodb
Bitnami mongodb8.2.0 → 8.3.8osvUSpkg:bitnami/mongodb
Bitnami mongodb9.0.0 → 9.0.2osvUSpkg:bitnami/mongodb

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2794MongoDB: Mehrere SchwachstellenDeutsch2026-08-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in MongoDB ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, und um beliebigen Programmcode auszuführen.
BIT-mongodb-2026-18692Use-After-Free in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Remote Code Execution2026-09-17vendor · osvUS
An issue in MongoDB Server's handling of timeseries bucket lifecycle could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed. Subsequent operations could then result in a server crash or, potentially, execution of unintended code.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2026-08-11modified 2026-10-23

references (3)

External citations — patches, advisories, analysis.

https://jira.mongodb.org/browse/SERVER-129887 cnnvd
https://jira.mongodb.org/browse/SERVER-129887 enisa_euvd
https://jira.mongodb.org/browse/SERVER-129887Vendor AdvisoryIssue Trackingnvd

scry

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