What is CVE-2026-6915?

CVE-2026-6915 is a medium-severity vulnerability in MongoDB, classified under Improper Validation of Specified Quantity in Input. CVSS score: 6.3/10. Published 2026-04-29.

How severe is CVE-2026-6915?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Vulnerability in MongoDB

CVE-2026-6915

An authorization flaw in the user management command could allow an authenticated user to make limited changes to authentication-related data associated with another user account. This could affect how authentication is performed for the impacted account.

Published 2026-04-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (18.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

MongoDB
MongoDB Server — versions 8.2.0, 8.0.0, 7.0.0

Weakness classification (CWE)

CWE-1284 — Improper Validation of Specified Quantity in Input

References

jira.mongodb.org/browse/SERVER-119679 (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2026-6915?: CVE-2026-6915 is a medium-severity vulnerability in MongoDB, classified under Improper Validation of Specified Quantity in Input. CVSS score: 6.3/10. Published 2026-04-29.
How severe is CVE-2026-6915?: Medium severity. CVSS v3 base score is 6.3 out of 10.