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CVE-2026-8202

Post-authentication CPU utilization DoS via $trim/$ltrim/$rtrim operators

Published: May 13, 2026Updated: May 18, 2026 Sources: CVE List NVDCWE-770
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.2%
Top 85.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:L
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:LAvailability
Low
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Weaknesses

CWE-770

Affected Products

MongoDB ServerMongoDB, Inc.
Mixed
Databases / nosql
mongodbmongodb
On-premDatabase
Databases / nosql
mongodb, inc.commercialUSDatabasesaka mongodb
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://jira.mongodb.org/browse/SERVER-120668
jira.mongodb.org

Timeline

Published
May 13, 2026
Last Updated
May 18, 2026

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