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CVE-2026-5170

Users could trigger a crash of mongod primaries during promotion to sharded

Published: Mar 30, 2026Updated: Apr 2, 2026 Sources: CVE List NVD BDUCWE-617
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.2%
Top 89.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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 Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-617

Affected Products

РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
MongoDB ServerMongoDB Inc.
On-premDatabase
Databases / nosql
MongoDB ServerMongoDB
On-premDatabase
Databases / nosql
mongodbmongodb
On-premDatabase
Databases / nosql
ооо «ред софт»commercialRUOperating Systemsaka red soft
mongodb inc.commercialUSDatabasesaka mongodb, mongodb server, mongodb ops manager
mongodbcommercialUSDatabases

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://redos.red-soft.ru/search/?iblock_id=24&q=CVE-2026-5170
redos.red-soft.ru
https://github.com/advisories/GHSA-qg39-5q45-4gcc
github.com
https://jira.mongodb.org/browse/SERVER-101758
jira.mongodb.org

Timeline

Published
Mar 30, 2026
Last Updated
Apr 2, 2026

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