CVE-2026-8202 MEDIUM

CVE-2026-8202: Post-authentication CPU utilization DoS via $trim/$ltrim/$rtrim operators

Vendor Mongodb, Inc.
Product MongoDB Server
Weakness CWE-770 · Uncontrolled resource consumption
Published May 13, 2026
Last update May 13, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 13, 2026 CVE published
May 13, 2026 Record updated