What is CVE-2026-18697?

CVE-2026-18697 is a high-severity vulnerability in Mongodb Server, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2026-08-11.

How severe is CVE-2026-18697?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Mongodb Server

CVE-2026-18697

An issue in MongoDB Server's aggregation framework could allow an unauthenticated party to cause a mongos (router) process to terminate unexpectedly by submitting a specially formed aggregation command. This could result in a denial of ser…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/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-617 — Reachable Assertion

References

cna@mongodb.com

Frequently asked questions

What is CVE-2026-18697?: CVE-2026-18697 is a high-severity vulnerability in Mongodb Server, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2026-08-11.
How severe is CVE-2026-18697?: High severity. CVSS v3 base score is 7.5 out of 10.