CVE-2026-5170

mediumpriority · track · 21EPSS 0.002 · 11 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.21% (11th) EPSS

CVSS 5.3 · medium

Is it mine?

22 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A user with access to the cluster with a limited set of privilege actions can trigger a crash of a mongod process during the limited and unpredictable window when the cluster is being promoted from a replica set to a sharded cluster. This may cause a denial of service by taking down the primary of the replica set. This issue affects MongoDB Server v8.2 versions prior to 8.2.2, MongoDB Server v8.0 versions between 8.0.18, MongoDB Server v7.0 versions between 7.0.31.

cvss

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

6.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.3–6

v3.15.3mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.6 · impact 3.6

v3.15.3mediumAV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · cna@mongodb.comexploitability 1.6 · impact 3.6

v4.06mediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.06mediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/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

v4.02.3lowCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/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.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-617USCWE-617US

affected products (22)

Products and version ranges known to be affected.

Open Source MongoDB <7.0.31all versionscert_bundDE
Open Source MongoDB <8.0.18all versionscert_bundDE
Open Source MongoDB <8.2.2all versionscert_bundDE
Open Source MongoDB <8.3.0-rc0all versionscert_bundDE
Open Source MongoDB< 7.0.31cert_bundDE
Open Source MongoDB< 8.0.18cert_bundDE
Open Source MongoDB< 8.2.2cert_bundDE
Open Source MongoDB< 8.3.0-rc0cert_bundDE
MONGODB MongoDB Server7.0 → 7.0.31enisa_euvdEU
MONGODB MongoDB Server8.0 → 8.0.18enisa_euvdEU
MONGODB MongoDB Server8.2 → 8.2.2enisa_euvdEU
MongoDB Inc. MongoDB Server7.0.0 → 7.0.31fstec_bduRU
MongoDB Inc. MongoDB Server8.0.0 → 8.0.18fstec_bduRU
MongoDB Inc. MongoDB Server8.2.0 → 8.2.2fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 8.0fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
mongodb mongodb7.0.0 → 7.0.31nvdUScpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
mongodb mongodb8.0.0 → 8.0.18nvdUScpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
mongodb mongodb8.2.0 → 8.2.2nvdUScpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
Bitnami mongodb7.0.0 → 7.0.31osvUSpkg:bitnami/mongodb

showing 20 of 22

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0920MongoDB: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-03-30csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in MongoDB ausnutzen, um einen Denial of Service Angriff durchzuführen.
BIT-mongodb-2026-5170Users could trigger a crash of mongod primaries during promotion to sharded2026-04-06vendor · osvUS
A user with access to the cluster with a limited set of privilege actions can trigger a crash of a mongod process during the limited and unpredictable window when the cluster is being promoted from a replica set to a sharded cluster. This may cause a denial of service by taking down the primary of the replica set. This issue affects MongoDB Server v8.2 versions prior to 8.2.2, MongoDB Server v8.0 versions between 8.0.18, MongoDB Server v7.0 versions between 7.0.31.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd osv NVD CVE.org MITRE

published 2026-03-30modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan