What is CVE-2026-120812?

CVE-2026-120812 is a medium-severity vulnerability in MongoDB Server, classified under Uncontrolled Recursion. CVSS score: 6.5/10. Published 2026-11-10.

How severe is CVE-2026-120812?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in MongoDB Server

CVE-2026-120812

An issue in MongoDB Server's query processing component allows an authenticated user with read privileges to cause a denial of service. Uncontrolled recursion in an internal query compilation component can lead to stack exhaustion and server process termination when processing certain queries against time-series collections.

Published 2026-11-10 · last modified 2026-11-10.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

MongoDB Server

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

References

jira.mongodb.org/browse/SERVER-131961

Frequently asked questions

What is CVE-2026-120812?: CVE-2026-120812 is a medium-severity vulnerability in MongoDB Server, classified under Uncontrolled Recursion. CVSS score: 6.5/10. Published 2026-11-10.
How severe is CVE-2026-120812?: Medium severity. CVSS v3 base score is 6.5 out of 10.