NULL pointer dereference in MongoDB Server
CVE-2026-104004
MongoDB Server's collection validation feature may not properly handle certain expressions stored in a validator. In some cases, this can cause the server process to stop running when a document is later inserted. The behavior can occur for authenticated users with write access.
Published .
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
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-104004?
- CVE-2026-104004 is a medium-severity vulnerability in MongoDB Server, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-10-13.
- How severe is CVE-2026-104004?
- Medium severity. CVSS v3 base score is 6.5 out of 10.