UpHeron
All vulnerabilities

Servers and applications

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

Severity
High 8.7
Published
11 Aug 2026
Last changed
16 Sept 2026
Added to UpHeron
21 Oct 2026
Fixed in
7.0.40, 8.0.29, 8.3.8
Sources
NVD

Affected software

SoftwareAffected versions
MongoDBServers and applications · cpe:a:mongodb:mongodb
  • Version 9.1.0-alpha0
  • Version 9.0.0-alpha1
  • Version 9.0.0-alpha0
  • From 8.3.0 before 8.3.8
All 7 release lines
  • From 7.0.0 before 7.0.40
  • From 8.0.0 before 8.0.29
  • From 8.2.0 up to 8.2.12
  • From 8.3.0 before 8.3.8
  • Version 9.0.0-alpha0
  • Version 9.0.0-alpha1
  • Version 9.1.0-alpha0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-18697
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-18697