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CVE-2026-8843

Calling createIndex with certain index types can crash mongod

Published: May 18, 2026Updated: May 18, 2026 Sources: CVE List NVDCWE-617
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.2%
Top 85.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Creating a "2dsphere_bucket" index on a non-timeseries bucket collection will succeed, but any subsequent attempt to insert a document which triggers updating that index will crash the server. A similar issue occurs when creating "queryable_encrypted_range" indices. This issue affects MongoDB Server v7.0 versions prior to 7.0.32, v8.0 versions prior to 8.0.21 and v8.2 versions prior to 8.2.6

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
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

MongoDB ServerMongoDB, Inc.
Mixed
Databases / nosql
mongodb, inc.commercialUSDatabasesaka mongodb

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://jira.mongodb.org/browse/SERVER-116327
jira.mongodb.org

Timeline

Published
May 18, 2026
Last Updated
May 18, 2026

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