What is CVE-2026-8202?

CVE-2026-8202 is a medium-severity vulnerability in Mongodb, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2026-05-13.

How severe is CVE-2026-8202?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Resource exhaustion in Mongodb

CVE-2026-8202

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…

EPSS: 0.001 (19.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Mongodb
Mongodb, Inc. Mongodb Server — versions 7.0, 8.0, 8.2

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

cna@mongodb.com (issue-tracking, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2026-8202?: CVE-2026-8202 is a medium-severity vulnerability in Mongodb, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2026-05-13.
How severe is CVE-2026-8202?: Medium severity. CVSS v3 base score is 4.3 out of 10.