CVE-2026-18697 (GCVE-0-2026-18697)

Vulnerability from cvelistv5 – Published: 2026-08-11 18:39 – Updated: 2026-08-11 20:29
VLAI
Title
Improper Input Validation in MongoDB Aggregation Framework Allows Unauthenticated Denial of Service on mongos
Summary
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.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 20:28 UTC
CWE
Assigner
mongodb CNA under the mitre root
CNA scorecard C 70/100 over 235 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
MongoDB MongoDB Server Affected: 8.3.0 , < 8.3.8 (semver)
Affected: 8.0 , < 8.0.29 (semver)
Affected: 7.0 , < 7.0.40 (semver)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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