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CVE-2026-18697

8.7 high SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 8.7 · mongodbNVD modified 2026-10-23 21:10

Affected (CPE criteria) 4

  • cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
  • cpe:2.3:a:mongodb:mongodb:9.0.0:alpha0:*:*:-:-:*:*
  • cpe:2.3:a:mongodb:mongodb:9.0.0:alpha1:*:*:-:-:*:*
  • cpe:2.3:a:mongodb:mongodb:9.1.0:alpha0:*:*:-:-:*:*

References 1