CVE-2026-18697

HighCVSS 7.5/10Last modified Oct 23, 2026

Description

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 service, disrupting client connections routed through the affected mongos instance.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-617

Affected software

No affected versions have been published.

Timeline

Published
Aug 11, 2026
Last modified
Oct 23, 2026
NVD status
Analyzed

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CVE-2026-18697: High severity, CVSS 7.5 | Vulnix