What is CVE-2026-13074?

CVE-2026-13074 is a medium-severity vulnerability in MongoDB, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-07-22.

How severe is CVE-2026-13074?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Resource exhaustion in MongoDB

CVE-2026-13074

An unauthenticated remote client can cause excessive CPU consumption on a MongoDB server by sending a specific combination of parameters to the awaitable hello command in exhaust mode. The server's handling of this combination results in a response loop that bypasses normal throttling, allowing a small number of connections to degrade server availability.

EPSS: 0.003 (21.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Mongodb
Mongodb Server — versions 7.0, 8.0, 8.2.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

cna@mongodb.com (Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2026-13074?: CVE-2026-13074 is a medium-severity vulnerability in MongoDB, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-07-22.
How severe is CVE-2026-13074?: Medium severity. CVSS v3 base score is 5.3 out of 10.