CVE-2026-8843

MEDIUM

Calling createIndex with certain index types can crash mongod

Title source: cna

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

References (1)

Core 1

Core References

Issue Tracking issue-tracking

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

Scores

CVSS v3 6.5

EPSS 0.0024

EPSS Percentile 14.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-617

Status published

Products (3)

MongoDB, Inc./MongoDB Server 7.0 - 7.0.32

MongoDB, Inc./MongoDB Server 8.0 - 8.0.21

MongoDB, Inc./MongoDB Server 8.2 - 8.2.6

Published May 18, 2026

Tracked Since May 18, 2026