Using a densely populated chars mask and a large input string in the MongoDB aggregation operators $trim, $ltrim, and $rtrim, an authenticated user with aggregation permissions can pin CPU utilization at 100% for an extended period of time.

This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

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History

Wed, 13 May 2026 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Mongodb
Mongodb mongodb
Mongodb mongodb Server
Vendors & Products Mongodb
Mongodb mongodb
Mongodb mongodb Server

Wed, 13 May 2026 02:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 13 May 2026 01:30:00 +0000

Type Values Removed Values Added
Description Using a densely populated chars mask and a large input string in the MongoDB aggregation operators $trim, $ltrim, and $rtrim, an authenticated user with aggregation permissions can pin CPU utilization at 100% for an extended period of time. This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
Title Post-authentication CPU utilization DoS via $trim/$ltrim/$rtrim operators
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-05-13T01:38:09.751Z

Reserved: 2026-05-08T23:43:11.551Z

Link: CVE-2026-8202

cve-icon Vulnrichment

Updated: 2026-05-13T01:38:05.952Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-05-13T04:17:42.037

Modified: 2026-05-13T15:34:29.847

Link: CVE-2026-8202

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-13T10:35:04Z

Weaknesses