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

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History

Mon, 18 May 2026 16:45:00 +0000

Type Values Removed Values Added
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
Title Calling createIndex with certain index types can crash mongod
Weaknesses CWE-617
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-05-18T15:40:06.265Z

Reserved: 2026-05-18T15:26:43.646Z

Link: CVE-2026-8843

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-18T17:16:34.563

Modified: 2026-05-18T17:16:34.563

Link: CVE-2026-8843

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-18T18:00:12Z

Weaknesses