What is CVE-2026-18699?

CVE-2026-18699 is a medium-severity vulnerability in Mongodb Server, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-08-11.

How severe is CVE-2026-18699?

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

NULL pointer dereference in Mongodb Server

CVE-2026-18699

An issue in MongoDB Server's query planner could allow an authenticated user with read-level privileges to cause the server process to terminate unexpectedly by submitting a specially formed query against a collection with a text index. Th…

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.

Affected products

Mongodb Server — versions 8.3.0, 8.0, 7.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cna@mongodb.com

Frequently asked questions

What is CVE-2026-18699?: CVE-2026-18699 is a medium-severity vulnerability in Mongodb Server, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-08-11.
How severe is CVE-2026-18699?: Medium severity. CVSS v3 base score is 6.5 out of 10.